Classification bulletin. 423. Class 171. Unearthing plants or buried objects, containing classification definitions of above class revised by Classification Group of Patent Office to include all chances through order 227, dated July 29, 1957.
Publication Title:
Class 171. Unearthing plants or buried objects, containing classification definitions of above class revised by Classification Group of Patent Office to include all chances through order 227, dated July 29, 1957.
Display Title:
Classification bulletin. 423. Class 171. Unearthing plants or buried objects, containing classification definitions of above class revised by Classification Group of Patent Office to include all chances through order 227, dated July 29, 1957.
Series Title:
Classification bulletin.
Corporate Agency Authors:
Patent Office and Commerce Dept.
Sort Author:
Patent Office
Date:
[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 21.3:423
Description:
[43] p. 4°
Notes:
[Issued with perforations.]
Notes:
[Issued with perforations.] • Sent to Depository Libraries. Item 252
Availability:
* For Sale by Superintendent of Documents. Paper, 30c. and • Sent to Depository Libraries. Item 252