- Publication Title:
- Percussive drilling with independent rotation [with list of references]; by Harold F. Unger and Robert R. Fumanti.
- Display Title:
- Report of investigations. 7692. Percussive drilling with independent rotation [with list of references]; by Harold F. Unger and Robert R. Fumanti.
- Series Title:
- Report of investigations.
- Corporate Agency Authors:
- Mines Bureau and Interior Dept.
- Sort Author:
- Mines Bureau
- Authors:
- Unger, Harold F. and Fumanti, Robert R.
- Author place:
- Washington, DC
- Author zip:
- 20240
- Date:
- [1972.]
- Publish Date ISO Format:
- 1972-01-01T00:00:00Z
- Publication Start:
- 19720101
- Publication End:
- 19721231
- Corporate/Agency Author:
- Mines Bureau
- Publication month:
- 13
- Publication year:
- 1972
- SuDoc number:
- I 28.23:(nos.)
- Description:
- [2]+ii+21 p. il. 4°
- Notes:
- † Distribution Made by Issuing Office. Mines Bureau, Pittsburgh, PA 15213 • Sent to Depository Libraries. Item 637-A
- Availability:
- † Distribution Made by Issuing Office. Mines Bureau, Pittsburgh, PA 15213 • Sent to Depository Libraries. Item 637-A
- GPO Item number:
- 637-A
- Monthly Catalog date:
- April 1973
- Monthly Catalog issue number:
- 939
- Monthly Catalog page number:
- 1
- Monthly Catalog issue date:
- 1973-04-01T00:00:00Z
- Monthly Catalog entry number:
- 21948
- Record start page number:
- 74