Reducing the time within which an interference with an issued patent may be permitted
Subtitle: report (to accompany H.R. 6875)
Series: Report / 76th Congress, 1st session, House of Representatives -- no. 970
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 28, 1939."