Patent normalization. | Automatic patent import |
US19990427497 | US19990427497 |
26/10/1999 | 26/10/1999 |
US2003018471 A1 23/01/2003 | US2003018471 A1 23/01/2003 |
MEL-FREQUENCY DOMAIN BASED AUDIBLE NOISE FILTER AND METHOD | MEL-FREQUENCY DOMAIN BASED AUDIBLE NOISE FILTER AND METHOD |
| |
| |
UNITED STATES | UNITED STATES |
| |
US19990427497 | US19990427497 |
CHENG YAN MING, AGARWAL ANSHU | CHENG YAN MING [US] AGARWAL ANSHU [US] |
| US19990427497 |
| |