Albert G. Zainullin

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Bugulma, SU

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Patents Grantslast 30 patents

Information Patent Grant
Well reamer
- Patent number 5,184,687
- Issue date Feb 9, 1993
- Gabdrashit S. Abdrakhmanov
- E21 - EARTH DRILLING MINING
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
Arrangement for patching off troublesome zones in a well
- Patent number 5,083,608
- Issue date Jan 28, 1992
- Gabdrashit S. Abdrakhmanov
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method of construction of multiple-string wells
- Patent number 4,976,322
- Issue date Dec 11, 1990
- Gabrashit S. Abdrakhmanov
- E21 - EARTH DRILLING MINING