- Publication Title:
- Patents. Classification of patents issued May 3-31, 1938.
- Display Title:
- Patents. Classification of patents issued May 3-31, 1938.
- Corporate Agency Authors:
- Patent Office and Commerce Department
- Sort Author:
- Patent Office
- Date:
- [1938.]
- Publish Date ISO Format:
- 1938-01-01T00:00:00Z
- Publication Start:
- 19380101
- Publication End:
- 19381231
- Corporate/Agency Author:
- Patent Office
- Publication month:
- 13
- Publication year:
- 1938
- SuDoc number:
- C 21.5/a 1:490/1-5
- Description:
- Each 2 p. large 8°
- Notes:
- [Weekly. From Official gazette, v. 490, no. 1-5.]
- Notes:
- [Weekly. From Official gazette, v. 490, no. 1-5.] † Distribution Made by Issuing Office. Paper, $2.50 a yr.
- Availability:
- † Distribution Made by Issuing Office. Paper, $2.50 a yr.
- Monthly Catalog date:
- May 1938
- Monthly Catalog issue number:
- 521
- Monthly Catalog page number:
- 1
- Monthly Catalog issue date:
- 1938-05-01T00:00:00Z
- Record start page number:
- 602