Contributory infringement in patents (Definition of invention )
Subtitle: hearings before Subcommittee on Patents, Trade-marks, and Copyrights ... Eightieth Congress, second session, on H.R. 5988, a bill to provide for the protection of patent rights where enforcement against direct infringements is impracticable, to define "contributory infringement," and for other purposes; H.R. 4061, a bill to establish a criterion of invention with respect to patent applications and issued patents and to amend section 4886 of the revised stature and for other purposes; H.R. 5248, a bill to declare the national policy regarding the test for determining invention. May 5, 7, and 12, 1948
Publisher: U.S. Govt. Print. Off.
Published: 1948
Place of publication: Washington
Language: eng
Number of pages: 99
Subjects: Patent laws and legislation -- United States
Notes: "Serial No. 21"