Alexandr D. Antonov

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Moscow, SU

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Patents Grantslast 30 patents

Information Patent Grant
Plough mining installation
- Patent number 4,488,757
- Issue date Dec 18, 1984
- Gosudarstvenny Proektno -Konstruktorsky I Eksperimentalny Institut Ugolnoi Pr...
- Nikolai V. Karmyshin
- E21 - EARTH DRILLING MINING