| 4792756 |
Method and apparatus for measuring axially extending defects in ferromagnetic elements |
Clive Lam, Marvin Milewits |
1988-12-20 |
| 4710712 |
Method and apparatus for measuring defects in ferromagnetic elements |
John E. Kahil, Mark S. Jaynes, Gordon L. Moake, Marvin Milewits, Curtis W. Bolton, III +2 more |
1987-12-01 |
| 4704580 |
Method and apparatus for measuring the depth of local defects in ferromagnetic elements |
Gordon L. Moake |
1987-11-03 |
| 4636727 |
Method and apparatus for detecting the location of defects in tubular sections moving past a well head |
John E. Kahil, Marvin Milewits, Clive Lam |
1987-01-13 |
| 4611170 |
Coil apparatus mounted on an axially split spool for indicating wall thickness variations of a length of ferromagnetic pipe |
Roderic K. Stanley, Marvin Milewits, Robert C. Knauer, Jr. |
1986-09-09 |
| 4555665 |
Magnetic flux method for measuring tubular wall thickness |
Roderic K. Stanley, Marvin Milewits, Robert C. Knauer, Jr. |
1985-11-26 |
| 4492115 |
Method and apparatus for measuring defects in ferromagnetic tubing |
John E. Kahil, Mark S. Jaynes |
1985-01-08 |