Classification bulletin. 440. Class 175, boring or penertating earth, containing classification definitions of above class revised by classification group of Patent Office by classification order 313, Nov. 28, 1960.
Publication Title:
Class 175, boring or penertating earth, containing classification definitions of above class revised by classification group of Patent Office by classification order 313, Nov. 28, 1960.
Display Title:
Classification bulletin. 440. Class 175, boring or penertating earth, containing classification definitions of above class revised by classification group of Patent Office by classification order 313, Nov. 28, 1960.
Series Title:
Classification bulletin.
Corporate Agency Authors:
Patent Office and Commerce Dept.
Sort Author:
Patent Office
Date:
[1961.]
Publish Date ISO Format:
1961-01-01T00:00:00Z
Publication Start:
19610101
Publication End:
19611231
Corporate/Agency Author:
Patent Office
Publication month:
13
Publication year:
1961
SuDoc number:
C 21.3:440
Description:
[88] p. 4°
Notes:
[Issued in loose-leaf form.]
Notes:
[Issued in loose-leaf form.] • Sent to Depository Libraries. Item 252
Availability:
* For Sale by Superintendent of Documents. Paper, $1.00. and • Sent to Depository Libraries. Item 252