Author: Commerce Dept. / Publish Year Decade: 1940 - 1949 / Sudoc Stem: C 21.5/a 1 - Blacklight Search Results

Start Over Author Commerce Dept. Publish Year Decade 1940 - 1949 Sudoc Stem C 21.5/a 1

1. Classification of patents issued Dec. 7, 1948-May 31, 1949.

Corporate/Agency Authors:: Patent Office and Commerce Dept.
Publisher:: Patent Office
Date:: [1948-49.]
SuDoc number:: C 21.5/a 1:617/1-622/5

2. Classification of patents issued June 1-Nov. 30, 1948.

Corporate/Agency Authors:: Patent Office and Commerce Dept.
Publisher:: Patent Office
Date:: [1948.]
SuDoc number:: C 21.5/a 1:611/1-616/5

3. Classification of patents issued Dec. 2, 1917-May 25, 1948.

Corporate/Agency Authors:: Patent Office and Commerce Dept.
Publisher:: Patent Office
Date:: [1947-48.]
SuDoc number:: C 21.5/a 1:605/1-610/4

4. Classiflcation of patents issued June 17-Nov. 18, 1947.

Corporate/Agency Authors:: Patent Office and Commerce Dept.
Publisher:: Patent Office
Date:: [1947.]
SuDoc number:: C 21.5/a 1:599/3-604/4