Yaroslav V. Vakula

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Almetievsk, SU

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for manufacturing profile pipes used in well construction
- Patent number 5,119,661
- Issue date Jun 9, 1992
- Gabdrashit S. Abdrakhmanov
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Method of casing off a producing formation in a well
- Patent number 5,031,699
- Issue date Jul 16, 1991
- Vadim V. Artynov
- E21 - EARTH DRILLING MINING