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| Number | Title | Issue Date |
| 6763253 | Device for bi-directional transmission of audio and/or video signals Proposed by the invention is a device for the bidirectional transfer of audio and/or video signals, in particular in the context of sound and/or image reports, with: at least one means (6) for providing an audio input signal; a first mixing devi... | 07/13/2004 |
| 6454226 | Holding device for the attachment of a microphone to an object A holding device for enabling essentially flexible attachment of a microphone to an object, the holding device comprising an attachment at a first end and adjoining element at the second end to which a microphone is positioned, at least part of the holdin... | 09/24/2002 |
