Classification bulletins. 409. Class 307, Electrical transmission or interconnection systems, Class 310, Electrical generator.
Publication Title:
Class 307, Electrical transmission or interconnection systems, Class 310, Electrical generator.
Display Title:
Classification bulletins. 409. Class 307, Electrical transmission or interconnection systems, Class 310, Electrical generator.
Series Title:
Classification bulletins.
Corporate Agency Authors:
Patent Office and Commerce Dept.
Sort Author:
Patent Office
Date:
Apr. 1954
Publish Date ISO Format:
1954-04-01T00:00:00Z
Publication Start:
19540401
Publication End:
19540430
Corporate/Agency Author:
Patent Office
Publication month:
9
Publication year:
1954
SuDoc number:
C 21.3:(nos.)
Description:
[89] p. 4°
Notes:
[Contains classification order 137 pertaining to classification of subjects of invention revised by classification group of Patent Office. Prior bulletin 408 contains order nos. 131-136.] and [Issued with perforations.]
Notes:
[Issued with perforations.] • Sent to Depository Libraries. Item 252
Availability:
* For Sale by Superintendent of Documents. Paper, 55c. and • Sent to Depository Libraries. Item 252