Classification bulletin. 401. [Revised classification of patents].
Publication Title:
[Revised classification of patents].
Display Title:
Classification bulletin. 401. [Revised classification of patents].
Series Title:
Classification bulletin.
Corporate Agency Authors:
Patent Office and Commerce Dept.
Sort Author:
Patent Office
Date:
Feb. 24-Oct. 23, 1951. [1952.]
Publish Date ISO Format:
1952-01-01T00:00:00Z
Publication Start:
19520101
Publication End:
19521231
Corporate/Agency Author:
Patent Office
Publication month:
13
Publication year:
1952
SuDoc number:
C 21.3:401
Description:
78 leaves. 4°
Notes:
[Contains classification order 94-115 pertaining to classification of subjects of invention revised by Classification Group of Patent Office.]
Notes:
[Contains classification order 94-115 pertaining to classification of subjects of invention revised by Classification Group of Patent Office.] * For Sale by Superintendent of Documents. Paper, 55c • Sent to Depository Libraries. Item 252
Availability:
* For Sale by Superintendent of Documents. Paper, 55c • Sent to Depository Libraries. Item 252