Classification bulletin 131-137, containing classification definitions of classes revised by Classification Group of Patent Office, to include all changes through order 37, dated Oct. 28, 1948.
Publication Title:
Classification bulletin 131-137, containing classification definitions of classes revised by Classification Group of Patent Office, to include all changes through order 37, dated Oct. 28, 1948.
Display Title:
Classification bulletin 131-137, containing classification definitions of classes revised by Classification Group of Patent Office, to include all changes through order 37, dated Oct. 28, 1948.
Corporate Agency Authors:
Patent Office and Commerce Dept.
Sort Author:
Patent Office
Date:
[1948.]
Publish Date ISO Format:
1948-01-01T00:00:00Z
Publication Start:
19480101
Publication End:
19481231
Corporate/Agency Author:
Patent Office
Publication month:
13
Publication year:
1948
SuDoc number:
C 21.3:131-137
Description:
various paging, 4°
Notes:
[Issued with perforations.]
Notes:
[Issued with perforations.] • Sent to Depository Libraries. Item 222
Notes:
131. Class 33, Geometrical instruments. * Paper, 20c.
132. Class 41. Ornamentation. * Paper, 15c.
133. Class 77, Boring and drilling. * Paper, 10c.
134. Class 95, Photography. * Paper, 15c.
135. Class 154, Laminated fabric and analagous manufactures. * Paper, 20c.
136. Class 181, Acoustics. * Paper, 10c.
137. Class 188, Brakes. * Paper, 15c.