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1. Patents, hearings, 77th Congress, 2d session, on S. 2303, to provide for use of patents in interest of national defense or prosecution of war, S. 2491, to emend patent laws, to prevent suppression of inventions, to promote progress of science and useful arts, and for other purposes, Aug. 18-21, 1942.

Corporate/Agency Authors:: Patents Commitee, Senate, and Congress
Publisher:: Patents Commitee
Date:: 1942
SuDoc number:: Y 4.P 27/2:P 27/5/pt.9

2. Radio communication. To amend copyright act, joint hearings before Committees on Patents, 69th Congress, 1st session, on S. 2328 and H. R. 10353, hills to amend see. 1 of act to amend and consolidate acts respecting copyright, as amended, by adding subsec. f, Apr. 5-9, 1926.

Corporate/Agency Authors:: Patents Commitee, House of Representatives, and Congress
Publisher:: Patents Commitee
Date:: 1926
SuDoc number:: Y 4.P 27/2:C 79/2

3. Trade-marks. Registration of trade-marks, joint hearings before Committees on Patents on S. 2679, to protect trade-marks used in commerce, to authorize registration of such trade-marks, and for other purposes, Jan. 20 and 21, 1925.

Corporate/Agency Authors:: Patents Commitee, Senate, and Congress
Publisher:: Patents Commitee
Date:: 1925
SuDoc number:: Y 4.P 27/2:T 67