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7109022 |
Composition containing calcium carbonate particles dispersed in sulfur for removing nitrate nitrogen
This invention relates to a denitrifying composition which is a material to be used for decomposing nitrates nitrogen in effluent by sulfur-oxidizing bacteria that consume sulfur and carbonate as...
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EP0541772B1 |
A PERSONAL COMMUNICATIONS DEVICE HAVING REMOTE CONTROL CAPABILITY
Abstract not available for EP0541772 Abstract of corresponding document: US5201067 A personal communications device (100) includes a wireless transceiver (206, 207, 208) to allow a two-way...
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5669067 |
Remotely controllable variable intermediate frequency transceiver
A transceiver and method of tuning a transceiver having a remote unit and a local unit. The remote unit includes a modulation section having a transmit frequency synthesizer and a receive frequency...
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5466374 |
Process for treating organically polluted water
A process for purifying organically polluted water containing organic nutrients for microorganisms, the process including (a) mixing the organically polluted water intensively with ozone in an...
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5201067 |
Personal communications device having remote control capability
A personal communications device (100) includes a wireless transceiver (206, 207, 208) to allow a two-way exchange of user information, and to allow down loading of remote control signalling...
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5170499 |
Method and apparatus for adjusting the volume level of a radio
Radios (104) are commanded to determine the ambient sound level. A code representing the ambient sound level is transmitted to a calling radio (104c) or base unit 102, that determines whether to...
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4788541 |
Signal communication system
A signal communication system provided in a board device has a signal input/output terminal board having a plurality of input/output terminals. When a signal is communicated between two board...
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4726051 |
Cordless telephone
A cordless telephone is described comprising a fixed part which includes a reception section for receiving exact reception channel frequencies lying in a predetermined frequency range at equal...
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4426733 |
Voice-controlled operator-interacting radio transceiver
A voice-controlled, operator-interacting radio transceiver has a transceiver for transmitting and receiving radio frequency signals under plural potential operating conditions including on/off,...
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4328578 |
Digital receiver/transceiver synchronization pulse detector for a multiplexing system
A radio transceiver is disclosed having manual controls on a microphone and the remainder of the circuitry located in a main chassis. The microphone and chassis are connected by means of a...
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4322855 |
Remote control apparatus
A remote control apparatus having a commander and a receiver. In a wireless remote control system for a television receiver having a channel command device and a responding device, the channel...
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4317222 |
Transceiver/receiver information multiplexing system
A radio transceiver is disclosed having manual controls on a microphone and the remainder of the circuitry located in a main chassis. The microphone and chassis are connected by means of a...
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