Sudoc Stem: C 21.13 - Blacklight Search Results

Start Over Sudoc Stem C 21.13

1. Newsletter. Patent Office news letter, Jan. 15-Apr. 1947.

Corporate/Agency Authors:: Patent Office
Publisher:: Patent Office
Date:: [1947.]
SuDoc number:: C 21.13:947/1-4

2. News letter. Patent Office news letter, Aug. 15-Dec. 15, 1946.

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: [1946.]
SuDoc number:: C 21.13:946/1-5