IP Library › Granted Patent US 4,354,085
Granted Patent Utility
US 4,354,085 · App. 06/220,552

Pipe welder with improved seam spreader

Inventors: Kenneth E. George, Jr., Douglas E. Alexander
Patented Case View Patent ↗
Granted: Oct 12, 1982 Filed: Dec 29, 1980
Inventors
Kenneth E. George, Jr.
Douglas E. Alexander
Assignee (at issue)
United States Steel Corporation

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Quick Facts
Patent No.
US 4,354,085
App. No.
06/220,552
Filed
1980-12-29
Granted
1982-10-12
Kind
A