Patents. Royalty payments, hearings, 77th Congress, 1st session, on H. J. Res. 32, H. J. Res. 73, and H. J. Res. 123, joint resolutions to define principle of international reciprocity in protection of American patents, trade-marks, secret formulas and processes, and copyrights by providing method for assuring payments of amounts due to persons in United States from users thereofin countries restricting international payments from their territories, Apr. 15, 1941.

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