Author: Agriculture Department / Catalog Issue Year Decade: 1930 - 1939 / Sudoc Stem: C 21.3 - Blacklight Search Results

Start Over Author Agriculture Department Catalog Issue Year Decade 1930 - 1939 Sudoc Stem C 21.3

1. Classification bulletin 66, Jan. 1-June 30, 1934, containing classification of subjects of invention revised by Classification Division.

Corporate/Agency Authors:: Patent Office and Agriculture Department
Publisher:: Patent Office
Date:: [1934.]
SuDoc number:: C 21.3:66