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Class Information
Number: 181/141
Name: Acoustics > Combined
Description: Subject matter to which has been added a subcombination or assembly which is recognized as the subject matter of some other class.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 5687246 |
Headpiece or headrest comprising a personal proximity sound rig |
Nov. 11, 1997 |
| 5675131 |
Speaker system and the same for television sets |
Oct. 7, 1997 |
| 5663534 |
Motor vehicle loudspeaker installation housing |
Sep. 2, 1997 |
| 5663533 |
Stethoscope ruler device |
Sep. 2, 1997 |
| 5652413 |
Speaker cover grille |
Jul. 29, 1997 |
| 5646381 |
Roof mounted sound horns for vehicles |
Jul. 8, 1997 |
| 5638456 |
Piezo speaker and installation method for laptop personal computer and other multimedia applications |
Jun. 10, 1997 |
| 5631449 |
Audio transmission device for mounting in a monitor of a computer system |
May. 20, 1997 |
| 5616891 |
Sealing panel, in particular for automobiles, including a loudspeaker housing |
Apr. 1, 1997 |
| 5612516 |
Enclosure for multiple vehicular audio speakers |
Mar. 18, 1997 |
| 5591946 |
Folding acoustic speaker container |
Jan. 7, 1997 |
| 5565659 |
Speaker cover grille |
Oct. 15, 1996 |
| 5532437 |
Speaker assembly |
Jul. 2, 1996 |
| 5416283 |
Drop-in speaker mount |
May. 16, 1995 |
| 5414229 |
Molded bracket for mounting a speaker in a vehicle |
May. 9, 1995 |
| 5397866 |
Dual acoustic horn assembly |
Mar. 14, 1995 |
| 5308937 |
Loudspeaker apparatus for electronic keyboard musical instrument |
May. 3, 1994 |
| 5294131 |
Audible arrow |
Mar. 15, 1994 |
| 5273243 |
Radio speaker mounting apparatus and method |
Dec. 28, 1993 |
| 5218175 |
Vehicle electroacoustical transducing |
Jun. 8, 1993 |
| 5181301 |
Method of making a very compact audio warning system |
Jan. 26, 1993 |
| 5172683 |
Stethoscope warmer |
Dec. 22, 1992 |
| 5096252 |
Truck cab speaker and seat organization |
Mar. 17, 1992 |
| 5094316 |
Overhead speaker system for use in vehicles |
Mar. 10, 1992 |
| 5031500 |
Keyboard instrument |
Jul. 16, 1991 |
| 5008944 |
Loudspeaker system for motor vehicles |
Apr. 16, 1991 |
| 4997059 |
Loudspeaker mounting |
Mar. 5, 1991 |
| 4993510 |
Mobile speaker fixing device |
Feb. 19, 1991 |
| 4967871 |
Body-sensible acoustic device |
Nov. 6, 1990 |
| 4963854 |
Light bulb shaped audio signal emitter |
Oct. 16, 1990 |
| 4955276 |
Dance percussion platform |
Sep. 11, 1990 |
| 4945346 |
Audible circuit tracer |
Jul. 31, 1990 |
| 4928787 |
Mobile speaker system |
May. 29, 1990 |
| 4928788 |
Ported automotive speaker enclosure apparatus and method |
May. 29, 1990 |
| 4924963 |
Compact and efficient sub-woofer system and method for installation in structural partitions |
May. 15, 1990 |
| 4924965 |
Speaker system |
May. 15, 1990 |
| 4924962 |
Sound reproducing apparatus for use in vehicle |
May. 15, 1990 |
| 4923032 |
Ceiling panel sound system |
May. 8, 1990 |
| 4917212 |
Speaker supporting unit |
Apr. 17, 1990 |
| 4889208 |
Speaker enclosures |
Dec. 26, 1989 |
| 4877105 |
Rear speaker unit for a motor vehicle |
Oct. 31, 1989 |
| 4823907 |
Balloon assembly |
Apr. 25, 1989 |
| 4815558 |
Device for accomodating a loudspeaker into a cut-out of a sound panel |
Mar. 28, 1989 |
| 4805728 |
Sound system with anechoic enclosure |
Feb. 21, 1989 |
| 4800983 |
Energized acoustic labyrinth |
Jan. 31, 1989 |
| 4790407 |
Resonance-compensated speaker system for vehicle |
Dec. 13, 1988 |
| 4778027 |
Rhythmizer |
Oct. 18, 1988 |
| 4776427 |
Echo sounds melodeon |
Oct. 11, 1988 |
| 4756382 |
Loudspeaker having enhanced response at bass frequencies |
Jul. 12, 1988 |
| 4733748 |
Loudspeaker mounting device for car radio |
Mar. 29, 1988 |
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