| 8795980 |
Methods for determination of previous ethanol consumption |
Anders Isaksson |
2014-08-05 |
| D418656 |
Vibrating screen |
— |
2000-01-04 |
| 6009180 |
Fluidic element noise and vibration control constructs and methods |
— |
1999-12-28 |
| 5749471 |
Vibrating screen |
— |
1998-05-12 |
| 5692702 |
Active control of tone noise in engine ducts |
— |
1997-12-02 |
| 5245552 |
Method and apparatus for actively reducing multiple-source repetitive vibrations |
Erik Godo |
1993-09-14 |
| 5233540 |
Method and apparatus for actively reducing repetitive vibrations |
Richard A. Russo |
1993-08-03 |
| 5197010 |
Apparatus for continuously actively balancing rotors |
— |
1993-03-23 |
| 5049768 |
Reducing engine noise by active oscillatory torque control |
— |
1991-09-17 |
| 4808863 |
Active control system and method for reducing engine noise and vibration |
— |
1989-02-28 |
| 4651566 |
Portable impedance meter for non-destructive testing of sound absorbing panels |
David R. Slotboom, Paul C. Topness |
1987-03-24 |
| 4305295 |
Portable apparatus for measuring acoustic impedance at the surface of curved sound absorber |
Robert B. Purves |
1981-12-15 |
| 4248093 |
Holographic resolution of complex sound fields |
Robert B. Purves |
1981-02-03 |