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Air purifying appliance

United States. Patent Office

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21 Books Similar to Air purifying appliance by United States. Patent Office

Bookscovery readers who liked Air purifying appliance also like 2,242,275. Electrical translating system and method, A digest of Patent Office decisions, 1869-1879 and A general index of the agricultural reports of the Patent Office, for twenty-five years, from 1837 to 1861 ; and of the Department of Agriculture, for fifteen years, from 1862 to 1876. How many of these have you read?

2,242,275. Electrical translating system and method by United States. Patent Office

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A digest of Patent Office decisions, 1869-1879 by William Edgar Simonds

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A general index of the agricultural reports of the Patent Office, for twenty-five years, from 1837 to 1861 ; and of the Department of Agriculture, for fifteen years, from 1862 to 1876 by United States. Dept. of Agriculture

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Annual report of the Commissioner of Patents, for the year 1847 by Charles L. Fleischmann

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Building construction, 2,278,956, Martin Wagner, Cambridge, Mass by Martin Wagner

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Decision in locomotive sight feed lubricators, rendered Jan. 19th, 1889 by United States. Patent Office

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Decision of the examiner of interferences, in the matter of the interferences between the application of S. M. Stevens, filed Dec. 8th, 1877, and the letters patent granted to Henry W. Putnam, Feb. 27, 1877, No. 1877,776, and Henry W. Putnam, Feb. 15th, 1876, and the letters patent granted to D. C. Stover, March 13th, 1877 by United States. Patent Office

Cover of Decision of the examiner of interferences, in the matter of the interferences between the application of S. M. Stevens, filed Dec. 8th, 1877, and the letters patent granted to Henry W. Putnam, Feb. 27, 1877, No. 1877,776, and Henry W. Putnam, Feb. 15th, 1876, and the letters patent granted to D. C. Stover, March 13th, 1877
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Decisions of the Commissioner of Patents and of the United States Courts in Patent and Trade-Mark and Copyright Cases by United States. Dept. of the Interior

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Decisions of the Commissioner of Patents and of the United States Courts in Patent and Trademark Cases, Volumes 138-149 by United States. Dept. of the Interior

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Directory of registered patent attorneys & agents as of December 1968 by United States. Patent Office

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General information about protection of trade marks, prints and labels ... by United States. Patent Office

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General information concerning trade-marks by United States. Patent Office

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Impregnation of filters by United States. Patent Office

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Index to classification of patents, July 1, 1947 by United States. Patent Office

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In the matter of the interference between the application of Henry Carmichael by James H. Lange

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In the United States Patent Office, before the examiner of interferences, Voelker v. Gray, et al., in re., interference by W. L. Voelker

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James W. McDonough vs. A. Graham Bell, Elisha Gray and others by James W. McDonough

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[John McCarthy vs. Westfield Plate Company] by John McCarthy

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Letter from the commissioner of patents, communicating, in obedience to law, a statement showing the amount of expenditures in the United States Patent Office from the 20th of July to the 30th of November, 1868, inclusive, and a statement of moneys received from the 1st day of July to the 30th day of November, 1868, inclusive ... by United States. Patent Office

Cover of Letter from the commissioner of patents, communicating, in obedience to law, a statement showing the amount of expenditures in the United States Patent Office from the 20th of July to the 30th of November, 1868, inclusive, and a statement of moneys received from the 1st day of July to the 30th day of November, 1868, inclusive ...
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List of patents for inventions and designs, issued by the United States, from 1790 to 1847 by Burke, Edmund

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Manual of classification by United States. Patent Office

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