Simplifying interference practice in the United States Patent Office
Subtitle: report (to accompany H.R. 6873)
Series: Report / 76th Congress, 1st session, House of Representatives -- no. 962
Publisher: U.S. G.P.O.
Published: 1939
Place of publication: Washington, D.C.?
Language: eng
Subjects: Patent laws and legislation
Notes: Caption title.

"June 27, 1939."