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| Number | Title | Issue Date |
| 7088223 | Sound generator for a parking assistance system A sound generator, in particular for parking assistance systems for vehicles, has a housing (2) comprising a base part (4) and a top part (6), wherein the base part (4) defines a receiving space (8, 10), which can be covered by the... | 08/08/2006 |
| 4347500 | Electric alarm device In an electric alarm device, a disk-shape housing has an opening on one surface and a substantially flat bottom surface on the other surface. A diaphragm is fixed to the periphery of the housing to close the opening of the housing. An armature is mounted ... | 08/31/1982 |
| 4097861 | D.C. horn A horn of improved, compact and efficient construction, formed of minimum numbers of components, is characterized by integrally formed parts which facilitate assembly of the horn and which increase the magnetic flux generated by the horn and the efficienc... | 06/27/1978 |
