"Transmission of documents via telephone wires is possible in principle, but the apparatus required is so expensive that it will never become a practical proposition."
Dennis Gabor, British physicist
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| Number | Title | Issue Date |
| 7485004 | Electrical connector having improved electrical element An electrical connector (1) has a base portion (22), a number of terminals (3) mounted to the base portion, a first circuit board (42) assembled to the base portion, a substrate paralleled with the base portion and a number of pins (21... | 02/03/2009 |
| 7344405 | Electro-acoustic transducer with holder An electro-acoustic transducer, for example a microphone, with a holder is provided with a block-shaped holder having on the front face a housing chamber housing a microphone main body with its acoustic holes situated on the external face, the microphone main body h... | 03/18/2008 |
| 7128599 | Low profile microphone connector A low profile microphone connector includes a dielectric housing and electrical terminals located in the housing. The housing has a generally cylindrical wall, a generally cylindrical microphone insertion cavity defined by the cylindrical wall, a supporting base for... | 10/31/2006 |
| 4230383 | Integral contact The contact connects a circuit element (such as a piezoelectric transducer) to a circuit (such as an oscillator which drives the transducer). The contact comprises a body, an ear which is mechanically and electrically connected to the circuit, and a pair ... | 10/28/1980 |