✦ LIBER ✦
Calculating the impact pulse shape in research and development of percussion units in drilling machines with independent bit rotation
✍ Scribed by V. D. Andreev
- Publisher
- Springer
- Year
- 1967
- Tongue
- English
- Weight
- 369 KB
- Volume
- 3
- Category
- Article
- ISSN
- 1573-8736
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