Bert Bergstrom

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Sandviken, SE

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Patents Grantslast 30 patents

Information Patent Grant
Drilling and threading tool and method for drilling and threading
- Patent number 4,831,674
- Issue date May 23, 1989
- Sandvik AB
- Bert E. Bergstrom
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Tubular drill tool
- Patent number 4,212,569
- Issue date Jul 15, 1980
- Sandvik Aktiebolag
- Allan Andersson
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR