Heltzel, John N. In Court of Customs and Patent Appeals, patent appeal no. 4873, in re John N. Heltzel, removable expansion joint form; brief for commissioner of patents.

Publication Title:
Heltzel, John N. In Court of Customs and Patent Appeals, patent appeal no. 4873, in re John N. Heltzel, removable expansion joint form; brief for commissioner of patents.
Display Title:
Heltzel, John N. In Court of Customs and Patent Appeals, patent appeal no. 4873, in re John N. Heltzel, removable expansion joint form; brief for commissioner of patents.
Corporate Agency Authors:
Patent Office and Commerce Department
Sort Author:
Patent Office
Date:
[1943.]
Publish Date ISO Format:
1943-01-01T00:00:00Z
Publication Start:
19430101
Publication End:
19431231
Corporate/Agency Author:
Patent Office
Publication month:
13
Publication year:
1943
SuDoc number:
C 21.10:H 369/4
Description:
cover title, 6 p. 4°
Notes:
‡ Official Use. Not Available.
Availability:
‡ Official Use. Not Available.
Monthly Catalog date:
December 1943
Monthly Catalog issue number:
587
Monthly Catalog page number:
1
Monthly Catalog issue date:
1943-12-01T00:00:00Z
Record start page number:
1397

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