Nikolai Makarovich Dergachev

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Moskovskaya oblast, SU

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Patents Grantslast 30 patents

Information Patent Grant
Resistance type flash butt welder
- Patent number 4,076,973
- Issue date Feb 28, 1978
- Viktor Senderovich Lifshits
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Machine for the resistance butt welding of pipes by fusion
- Patent number 4,012,619
- Issue date Mar 15, 1977
- Viktor Senderovich Lifshits
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR