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Patents
Patents Assigned to Tube Engineers, Inc.
Patents Assigned to Tube Engineers, Inc.
Pressure gauge spring
Patent number:
4191056
Abstract:
A pressure responsive spring element for a gauge is made from cold worked metal.
Type:
Grant
Filed:
August 29, 1978
Date of Patent:
March 4, 1980
Assignee:
Tube Engineers, Inc.
Inventor:
Edward S. Holden