Catalog Issue Year Decade: 1960 - 1969 / Sudoc Stem: C 21.12/2 - Blacklight Search Results

Start Over Catalog Issue Year Decade 1960 - 1969 Sudoc Stem C 21.12/2

1. Index to classification, [Apr. 1966], supplement.

Corporate/Agency Authors:: Patent Office and Commerce Dept.
Publisher:: Patent Office
Date:: [September 1968]
SuDoc number:: C 21.12/2:966/supp.

2. Index to classification.

Corporate/Agency Authors:: Patent Office and Commerce Dept.
Publisher:: Patent Office
Date:: [Apr. 1966.]
SuDoc number:: C 21.12/2:966

3. index to classification.

Corporate/Agency Authors:: Patent Office and Commerce Dept.
Publisher:: Patent Office
Date:: [July 1963.]
SuDoc number:: C 21.12/2:963

4. Index to classification.

Corporate/Agency Authors:: Patent Office and Commerce Dept.
Publisher:: Patent Office
Date:: [Jan. 1960.]
SuDoc number:: C 21.12/2:960