✦ LIBER ✦
Test results on drill bits with bearings of improved dimensional accuracy and surface finish
✍ Scribed by A. N. Filin; V. F. Sovkin; P. I. Sopin; M. S. Zlotnikov; A. A. Akchurin
- Publisher
- Springer
- Year
- 1971
- Tongue
- English
- Weight
- 149 KB
- Volume
- 7
- Category
- Article
- ISSN
- 0009-2355
No coin nor oath required. For personal study only.