- Publication Title:
- Patents. Classification of patents issued Apr. 7-28, 1931.
- Display Title:
- Patents. Classification of patents issued Apr. 7-28, 1931.
- Corporate Agency Authors:
- Patent Office and Commerce Department
- Sort Author:
- Patent Office
- Date:
- [1931.]
- Publish Date ISO Format:
- 1931-01-01T00:00:00Z
- Publication Start:
- 19310101
- Publication End:
- 19311231
- Corporate/Agency Author:
- Patent Office
- Publication month:
- 13
- Publication year:
- 1931
- SuDoc number:
- C 21.5/a 1:405/1-4
- Description:
- Each 2 p. large 8°
- Notes:
- [Weekly. From Official gazette, v. 405, no. 1-4.]
- Notes:
- [Weekly. From Official gazette, v. 405, no. 1-4.] † Distribution Made by Issuing Office.
- Availability:
- † Distribution Made by Issuing Office.
- Monthly Catalog date:
- April 1931
- Monthly Catalog issue number:
- 436
- Monthly Catalog page number:
- 1
- Monthly Catalog issue date:
- 1931-04-01T00:00:00Z
- Record start page number:
- 879