Classification bulletin 143, Oct. 17, 1947-Jan. 31, 1949, containing classification orders 18-48 pertaining to classification of subjects of invention revised by Classification Group of Patent Office and includes: Class 346, Recorders.
Publication Title:
Classification bulletin 143, Oct. 17, 1947-Jan. 31, 1949, containing classification orders 18-48 pertaining to classification of subjects of invention revised by Classification Group of Patent Office and includes: Class 346, Recorders.
Display Title:
Classification bulletin 143, Oct. 17, 1947-Jan. 31, 1949, containing classification orders 18-48 pertaining to classification of subjects of invention revised by Classification Group of Patent Office and includes: Class 346, Recorders.
Corporate Agency Authors:
Patent Office and Commerce Dept.
Sort Author:
Patent Office
Date:
[1949.]
Publish Date ISO Format:
1949-01-01T00:00:00Z
Publication Start:
19490101
Publication End:
19491231
Corporate/Agency Author:
Patent Office
Publication month:
13
Publication year:
1949
SuDoc number:
C 21.3:143
Description:
12 leaves, 4°
Notes:
* For Sale by Superintendent of Documents. Paper, 70c. • Sent to Depository Libraries. Item 222
Availability:
* For Sale by Superintendent of Documents. Paper, 70c. • Sent to Depository Libraries. Item 222