| 6283232 |
Rock drill |
Rainer Batliner, Steven Moseley, Udo Hauptmann |
2001-09-04 |
| 6044918 |
Percussion blow added manually operable drilling tool |
Otto Noser, Alexander Hoop, Ulrich Bourgund, Hanspeter Schad, Stefan Miescher |
2000-04-04 |
| 5895179 |
Drill |
Hans Gschwend, Fritz Mark |
1999-04-20 |
| 5806609 |
Manually operable tool for drilling and/or removing material in brittle and/or low ductile material |
Maximilian Stock, Werner Kaibach, Reinhard Schulz, Hans-Werner Bongers-Ambrosius, Ralf Ludwig +1 more |
1998-09-15 |
| 5317147 |
Method and apparatus for absolute measurement of force by use of polarized, non-coherent light and compensation of strain-induced birefringence effects in a single mode-fiber optic waveguide |
Rene Dandliker, Hanspeter Schad, Walter Odoni |
1994-05-31 |
| 5308973 |
Method and device for the measurement of force by a fiber optics system by evaluating phase shift of light waves |
Walter Odoni, Rene Dandliker, Hanspeter Schad |
1994-05-03 |