Classification bulletins. 141. Class 210, Liquid purification or separation, containing classification definitions of above class revised by Classification Group of Patent Office, to include all changes through order 216, dated Mar. 29, 1957.
Publication Title:
Class 210, Liquid purification or separation, containing classification definitions of above class revised by Classification Group of Patent Office, to include all changes through order 216, dated Mar. 29, 1957.
Display Title:
Classification bulletins. 141. Class 210, Liquid purification or separation, containing classification definitions of above class revised by Classification Group of Patent Office, to include all changes through order 216, dated Mar. 29, 1957.
Series Title:
Classification bulletins.
Corporate Agency Authors:
Patent Office and Commerce Dept.
Sort Author:
Patent Office
Date:
Revision 1. [1957.]
Publish Date ISO Format:
1957-01-01T00:00:00Z
Publication Start:
19570101
Publication End:
19571231
Corporate/Agency Author:
Patent Office
Publication month:
13
Publication year:
1957
SuDoc number:
C 21.3:(nos.)
Description:
[111] p. 4°
Notes:
[Issued with perforations.]
Notes:
[Issued with perforations.] • Sent to Depository Libraries. Item 252
Availability:
* For Sale by Superintendent of Documents. Paper, 70c. and • Sent to Depository Libraries. Item 252