Author: Agriculture Department / Catalog Issue Year Decade: 1930 - 1939 / Sudoc Stem: C 21.5/a 1 - Blacklight Search Results

Start Over Author Agriculture Department Catalog Issue Year Decade 1930 - 1939 Sudoc Stem C 21.5/a 1

1. Patents. Classification of patents issued Sept. 4-25, 1934.

Corporate/Agency Authors:: Patent Office and Agriculture Department
Publisher:: Patent Office
Date:: [1934.]
SuDoc number:: C 21.5/a 1:446/1-4