Classification bulletins 243-257, containing classification definitions of classes revised by Classification Group of Patent Office, to include all changes through order 61, dated Dec. 28, 1949. 250. Class 123, Internal combustion engines.
Publication Title:
Class 123, Internal combustion engines.
Display Title:
Classification bulletins 243-257, containing classification definitions of classes revised by Classification Group of Patent Office, to include all changes through order 61, dated Dec. 28, 1949. 250. Class 123, Internal combustion engines.
Series Title:
Classification bulletins 243-257, containing classification definitions of classes revised by Classification Group of Patent Office, to include all changes through order 61, dated Dec. 28, 1949.
Corporate Agency Authors:
Patent Office and Commerce Dept.
Sort Author:
Patent Office
Date:
[1950.]
Publish Date ISO Format:
1950-01-01T00:00:00Z
Publication Start:
19500101
Publication End:
19501231
Corporate/Agency Author:
Patent Office
Publication month:
13
Publication year:
1950
SuDoc number:
C 21.3:243-257
Description:
[2]+36 p. 4°
Notes:
[Issued with perforations.]
Notes:
[Issued with perforations.] • Sent to Depository Libraries. Item 222
Availability:
* For Sale by Superintendent of Documents. Paper, 25c. and • Sent to Depository Libraries. Item 222