Classification bulletin 140-141, containing classification definitions of class revised by Classification Group of Patent Office to include all changes through order 49, dated Feb. 16, 1949.
Publication Title:
Classification bulletin 140-141, containing classification definitions of class revised by Classification Group of Patent Office to include all changes through order 49, dated Feb. 16, 1949.
Display Title:
Classification bulletin 140-141, containing classification definitions of class revised by Classification Group of Patent Office to include all changes through order 49, dated Feb. 16, 1949.
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 21.3:140-141
Description:
[2]+34 p. and [2]+20 p. 4°
Notes:
[Issued with perforations.]
Notes:
[Issued with perforations.]
Notes:
140. Class 101, Printing. * Paper, 25c.
141. Class 210, Liquid separation or purification. * Paper, 15c.