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Patent applications and USPTO patent grants for Galyan; Boris A..The latest application filed is for "machine for butt welding of pipes".
Patent | Date |
---|---|
Machine for butt welding of pipes Grant 7,802,714 - Kuchuk-Yatsenko , et al. September 28, 2 | 2010-09-28 |
Machine For Butt Welding Of Pipes App 20100230470 - Kuchuk-Yatsenko; Sergey I. ;   et al. | 2010-09-16 |
Pipe resistance butt welding apparatus Grant 4,323,752 - Paton , et al. April 6, 1 | 1982-04-06 |
Doughnut-type transformer for resistance butt welding Grant 4,297,665 - Paton , et al. October 27, 1 | 1981-10-27 |
Ring transformer for resistance butt welders Grant 4,249,153 - Paton , et al. February 3, 1 | 1981-02-03 |
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