Day, Roger O. In Court of Customs and Patent Appeals, patent appeal no. 4459, in re Roger O. Day, method of surface hardening gear teeth and screw threads; brief for commissioner of patents.

Publication Title:
Day, Roger O. In Court of Customs and Patent Appeals, patent appeal no. 4459, in re Roger O. Day, method of surface hardening gear teeth and screw threads; brief for commissioner of patents.
Display Title:
Day, Roger O. In Court of Customs and Patent Appeals, patent appeal no. 4459, in re Roger O. Day, method of surface hardening gear teeth and screw threads; brief for commissioner of patents.
Corporate Agency Authors:
Patent Office and Commerce Department
Sort Author:
Patent Office
Date:
[1941.]
Publish Date ISO Format:
1941-01-01T00:00:00Z
Publication Start:
19410101
Publication End:
19411231
Corporate/Agency Author:
Patent Office
Publication month:
13
Publication year:
1941
SuDoc number:
C 21.10:D 333
Description:
cover title, 7 p. 4°
Notes:
‡ Official Use. Not Available.
Availability:
‡ Official Use. Not Available.
Monthly Catalog date:
February 1941
Monthly Catalog issue number:
554
Monthly Catalog page number:
1
Monthly Catalog issue date:
1941-02-01T00:00:00Z
Record start page number:
138

Tools