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. 252. Class 125, Stone working.
Publication Title:
Class 125, Stone working.
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. 252. Class 125, Stone working.
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]+4 p. 4°
Notes:
[Issued with perforations.]
Notes:
[Issued with perforations.] • Sent to Depository Libraries. Item 222
Availability:
* For Sale by Superintendent of Documents. Paper, 10c. and • Sent to Depository Libraries. Item 222