Classification bulletin 411, containing classification order nos. 140-143 pertaining to classification of subjects of invention revised by classification group of Patent Office.
Publication Title:
Classification bulletin 411, containing classification order nos. 140-143 pertaining to classification of subjects of invention revised by classification group of Patent Office.
Display Title:
Classification bulletin 411, containing classification order nos. 140-143 pertaining to classification of subjects of invention revised by classification group of Patent Office.
Corporate Agency Authors:
Patent Office and Commerce Dept.
Sort Author:
Patent Office
Date:
[1953.]
Publish Date ISO Format:
1953-01-01T00:00:00Z
Publication Start:
19530101
Publication End:
19531231
Corporate/Agency Author:
Patent Office
Publication month:
13
Publication year:
1953
SuDoc number:
C 21.3:411
Description:
[146] p. 4°
Notes:
[Issued with perforations. Prior bulletin 410 contains order nos. 138-139.]
Notes:
[Issued with perforations. Prior bulletin 410 contains order nos. 138-139.] * For Sale by Superintendent of Documents. Paper, 90c. • Sent to Depository Libraries. Item 252
Availability:
* For Sale by Superintendent of Documents. Paper, 90c. • Sent to Depository Libraries. Item 252