- Publication Title:
- Mining or in situ disintegration of hard material.
- Display Title:
- Classification definitions. class 299. Mining or in situ disintegration of hard material.
- Series Title:
- Classification definitions.
- Corporate Agency Authors:
- Patent Office and Commerce Dept.
- Sort Author:
- Patent Office
- Author place:
- Washington, DC
- Author zip:
- 20231
- Date:
- Revision 1. Jan. 1969
- Publish Date ISO Format:
- 1969-01-01T00:00:00Z
- Publication Start:
- 19690101
- Publication End:
- 19691231
- Corporate/Agency Author:
- Patent Office
- Publication month:
- 13
- Publication year:
- 1969
- SuDoc number:
- C 21.3/2:(nos.)
- Description:
- 1+1-2, 2A-19 p. 4°
- Notes:
- [Original classification by E. R. Purser and B. Hersh.] and (Office of Examining and Documentation Control.) [Issued with perforations.]
- Notes:
- (Office of Examining and Documentation Control.) [Issued with perforations.] † Distribution Made by Issuing Office. Paper, 25c.
- Availability:
- † Distribution Made by Issuing Office. Paper, 25c.
- Monthly Catalog date:
- August 1969
- Monthly Catalog issue number:
- 895
- Monthly Catalog page number:
- 1
- Monthly Catalog issue date:
- 1969-08-01T00:00:00Z
- Monthly Catalog entry number:
- 11584
- Record start page number:
- 77