Wietzel, Rudolf. In Court of Appeals of District of Columbia, Oct. term, 1928, patent appeal no: 2229, in re Rudolf Wietzel and Wilhelm Michael, improvements in producing formamid and hydrocyanic acid; brief for commissioner of patents.

Publication Title:
Wietzel, Rudolf. In Court of Appeals of District of Columbia, Oct. term, 1928, patent appeal no: 2229, in re Rudolf Wietzel and Wilhelm Michael, improvements in producing formamid and hydrocyanic acid; brief for commissioner of patents.
Display Title:
Wietzel, Rudolf. In Court of Appeals of District of Columbia, Oct. term, 1928, patent appeal no: 2229, in re Rudolf Wietzel and Wilhelm Michael, improvements in producing formamid and hydrocyanic acid; brief for commissioner of patents.
Corporate Agency Authors:
Patent Office
Sort Author:
Patent Office
Date:
1928
Publish Date ISO Format:
1928-01-01T00:00:00Z
Publication Start:
19280101
Publication End:
19281231
Corporate/Agency Author:
Patent Office
Publication month:
13
Publication year:
1928
SuDoc number:
C 21.10:W 638
Description:
cover-title, 10 p.
Notes:
‡ Official Use. Not Available.
Availability:
‡ Official Use. Not Available.
Monthly Catalog date:
October 1928
Monthly Catalog issue number:
406
Monthly Catalog page number:
1
Monthly Catalog issue date:
1928-10-01T00:00:00Z
Record start page number:
220

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