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Class Information
Number: 455/462
Name: Telecommunications > Radiotelephone system > Including private cordless extension system
Description: Subject matter wherein a base transceiver having direct connection to a landline telephone switching system provides restricted telephony access to a pre-selected cordless extension unit.










Sub-classes under this class:

Class Number Class Name Patents
455/464 Channel selection or allocation 683
455/463 Multi-users 269


Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13

Patent Number Title Of Patent Date Issued
4119800 Radio-telephone interconnection system Oct. 10, 1978
4053717 Cordless telephone Oct. 11, 1977
4039760 Cordless telephone system Aug. 2, 1977
4005269 Apparatus for interfacing between telephone and wireless communication systems Jan. 25, 1977
3962553 Portable telephone system having a battery saver feature Jun. 8, 1976
3936616 "Wild" mobile disable circuit Feb. 3, 1976

1 2 3 4 5 6 7 8 9 10 11 12 13










 
 
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