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Books by United States Patent Office

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2 books found
Patent #2105264 Granted To Herbert Vernon Reed of England, for an Alleged New and Useful Improvements in apparatus for Generation of Foam for Fire Extinction...Patent Certificate Dated January 11, 1938 (Disbound copy)
Patent #2105264 Granted To Herbert Vernon Reed of England, …
By: United States Patent Office
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Patent#2105120, Granted To Arnold E.W. Johnson of Chicago, IL, Assignor to International Harvestor Company, for an Alleged New & Useful Improvements In Furrow Openers for Grain Drills: Patent Certificate Dated January 11, 1938
Patent#2105120, Granted To Arnold E.W. Johnson of Chicago, …
By: United States Patent Office
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