| 5804964 |
Wire rope damage index monitoring device |
Michel Hamelin |
1998-09-08 |
| 5565771 |
Apparatus for increasing linear resolution of electromagnetic wire rope testing |
Michel Hamelin |
1996-10-15 |
| 5411648 |
Method and apparatus for on-line monitoring the quality of a purified metal sulphate solution |
George Houlachi, M. Barakat I. Janjua, Gregory A. Wint, Vladimir M. Labuc |
1995-05-02 |
| 5106164 |
Plasma blasting method |
Jacques Nantel |
1992-04-21 |
| 4897577 |
Electromechanically triggered spark gap switch |
— |
1990-01-30 |
| 4884250 |
Accelerometer for blast monitoring |
David Sprott, Michel Menard |
1989-11-28 |
| 4845990 |
Ultrasonic mine survey probe |
Vladimir M. Labuc |
1989-07-11 |
| 4708495 |
Metal surface temperature monitor |
Vladimir M. Labuc |
1987-11-24 |
| 4619533 |
Tuyere pyrometer |
John M. Lucas, Vladimir M. Labuc, John G. Peacey, Albert Pelletier, Gregory A. Wint |
1986-10-28 |
| 4281290 |
Voltage monitor |
John G. Peacey, Ralph R. Ebersole, Jean-Claude Viens |
1981-07-28 |
| 4223549 |
Oxygen monitoring circuit with built in testing means |
— |
1980-09-23 |
| 4181699 |
Apparatus for detecting the presence of a specific substance in a gas stream |
— |
1980-01-01 |