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. 313. Class 219, Electric heating.
Publication Title:
Class 219, Electric heating.
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. 313. Class 219, Electric heating.
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]+6 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