Dunbar, F. W. In Court of Appeals of District of Columbia, Jan. term, 1921, patent appeal no. 1399, in re F. W. Dunbar, telephone exchange system; brief for commissioner of patents.

Publication Title:
Dunbar, F. W. In Court of Appeals of District of Columbia, Jan. term, 1921, patent appeal no. 1399, in re F. W. Dunbar, telephone exchange system; brief for commissioner of patents.
Display Title:
Dunbar, F. W. In Court of Appeals of District of Columbia, Jan. term, 1921, patent appeal no. 1399, in re F. W. Dunbar, telephone exchange system; brief for commissioner of patents.
Corporate Agency Authors:
Patent Office and Interior Department
Sort Author:
Patent Office
Date:
1921
Publish Date ISO Format:
1921-01-01T00:00:00Z
Publication Start:
19210101
Publication End:
19211231
Corporate/Agency Author:
Patent Office
Publication month:
13
Publication year:
1921
Description:
cover-title, 19 p.
Notes:
‡ Official Use. Not Available.
Availability:
‡ Official Use. Not Available.
Monthly Catalog date:
March 1921
Monthly Catalog issue number:
315
Monthly Catalog page number:
1
Monthly Catalog issue date:
1921-03-01T00:00:00Z
Record start page number:
461

Tools