Hartrun Corporation Trademarks
KRAK-GAGE
Filed: August 13, 1979
Gauges Attachable to Materials to Determine the Crack Length and Rate of Fatigue of the Materials
Owned by: Hartrun Corporation
Serial Number: 73227116
FRACTOMAT
Filed: August 13, 1979
Fracture and Fatigue Measuring Units
Owned by: Hartrun Corporation
Serial Number: 73227117