Classification bulletin. 425. Class 172, Earth working, containing classification definitions of above class revised by classification group of Patent Office and established by classification order 267, Dec. 12, 1958.
Publication Title:
Class 172, Earth working, containing classification definitions of above class revised by classification group of Patent Office and established by classification order 267, Dec. 12, 1958.
Display Title:
Classification bulletin. 425. Class 172, Earth working, containing classification definitions of above class revised by classification group of Patent Office and established by classification order 267, Dec. 12, 1958.
Series Title:
Classification bulletin.
Corporate Agency Authors:
Patent Office and Commerce Dept.
Sort Author:
Patent Office
Date:
[1959.]
Publish Date ISO Format:
1959-01-01T00:00:00Z
Publication Start:
19590101
Publication End:
19591231
Corporate/Agency Author:
Patent Office
Publication month:
13
Publication year:
1959
SuDoc number:
C 21.3:425
Description:
[132] p. 4°
Notes:
[Issued with perforations.]
Notes:
[Issued with perforations.] • Sent to Depository Libraries. Item 252
Availability:
* For Sale by Superintendent of Documents. Paper, $1.50. and • Sent to Depository Libraries. Item 252