-
-
Pipeline inspection apparatus
-
Patent number 4,372,658
-
Issue date Feb 8, 1983
-
Magnaflux Corporation
-
Donald T. O'Connor
-
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
-
-
Pipeline inspection apparatus
-
Patent number 4,249,810
-
Issue date Feb 10, 1981
-
Magnaflux Corporation
-
Donald T. O'Connor
-
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
-
Ultrasonic testing system
-
Patent number 4,193,306
-
Issue date Mar 18, 1980
-
Magnaflux Corporation
-
John J. Flaherty
-
G01 - MEASURING TESTING
-
-
Flying spot pattern storage system
-
Patent number 4,123,797
-
Issue date Oct 31, 1978
-
Magnaflux Corporation
-
Eric J. Strauts
-
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
-
-