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Class Information
Number: 381/87
Name: Electrical audio signal processing systems and devices > Having non-electrical feature (e.g., mounting)
Description: Subject matter including a mechanical adjunct or device such as a mounting means or a specific container for electrical components.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 4727587 |
Acoustical transducer mounting arrangement |
Feb. 23, 1988 |
| 4691363 |
Transducer device |
Sep. 1, 1987 |
| 4672675 |
Multiple speaker loudspeaker with conductive bridge |
Jun. 9, 1987 |
| 4630303 |
Speaker system having a movable high range unit |
Dec. 16, 1986 |
| 4625328 |
Integrated amplifier and speaker system with improved cooling efficiency |
Nov. 25, 1986 |
| 4564727 |
Subwoofer speaker system |
Jan. 14, 1986 |
| 4559584 |
Combination lighting device and loudspeaker |
Dec. 17, 1985 |
| 4555598 |
Teleconferencing acoustic transducer |
Nov. 26, 1985 |
| 4508936 |
Local external communication system |
Apr. 2, 1985 |
| 4506379 |
Method and system for discriminating human voice signal |
Mar. 19, 1985 |
| 4492826 |
Loudspeaker |
Jan. 8, 1985 |
| 4484658 |
Speaker support assembly |
Nov. 27, 1984 |
| 4475226 |
Stereo sound and light track system |
Oct. 2, 1984 |
| 4475231 |
Multi-unit audio connecting system |
Oct. 2, 1984 |
| 4420706 |
Connector assembly for a piezoelectric transducer |
Dec. 13, 1983 |
| 4410772 |
Superminiature microphone device |
Oct. 18, 1983 |
| 4319097 |
Mounting system for a mobile microphone |
Mar. 9, 1982 |
| 4311874 |
Teleconference microphone arrays |
Jan. 19, 1982 |
| 4303807 |
Ultra-small portable sound reproducing apparatus |
Dec. 1, 1981 |
| 4087652 |
Microphone switch key |
May. 2, 1978 |
| 4032725 |
Speaker mounting |
Jun. 28, 1977 |
| 4002859 |
Multi-mode electrostatic microphone construction |
Jan. 11, 1977 |
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