Classifications bulletins 277-323, containing classification definitions of classes revised by Classification Group of Patent Office, to include all changes through order 66, dated Mar. 28, 1950. 322. Class 23S. Railways, surface track.
Publication Title:
Class 23S. Railways, surface track.
Display Title:
Classifications bulletins 277-323, containing classification definitions of classes revised by Classification Group of Patent Office, to include all changes through order 66, dated Mar. 28, 1950. 322. Class 23S. Railways, surface track.
Series Title:
Classifications bulletins 277-323, containing classification definitions of classes revised by Classification Group of Patent Office, to include all changes through order 66, dated Mar. 28, 1950.
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:(nos.)
Description:
[2]+22 p. 4°
Notes:
[Issued with perforations.]
Notes:
[Issued with perforations.] • Sent to Depository Libraries. Item 222
Availability:
* For Sale by Superintendent of Documents. Paper, 15c. and • Sent to Depository Libraries. Item 222