Publish Year Decade: 1960 - 1969 / Sudoc Stem: C 21.18 - Blacklight Search Results

Start Over Publish Year Decade 1960 - 1969 Sudoc Stem C 21.18

1. Research and development reports. 20. Parameters for information retrieval system for chemical processes [with list of references; prepared by Rowena W. Swanson, Harold Pfeffer].

Corporate/Agency Authors:: Patent Office and Commerce Dept.
Publisher:: Patent Office
Date:: [Apr. 20, 1961.]
SuDoc number:: C 21.18:20