4. Telephonic communications
  5. Private or single line system
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Improved page party system

Telephonic communications – Private or single line system – With paging
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Integrated communications control device for a small office conf

Telephonic communications – Private or single line system – Doorbell system
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Integrated telephone intercommunication and alarm electronic con

Telephonic communications – Private or single line system – Doorbell system
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Integrated wireless communication system

Telephonic communications – Private or single line system – Including body or apparel supported terminal
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Integrated wireless communication system

Telephonic communications – Private or single line system – Including body or apparel supported terminal
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Integrated wireless communication system

Telephonic communications – Private or single line system – Including body or apparel supported terminal
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Intercom system

Telephonic communications – Private or single line system – Doorbell system
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Intercom system for a building or apartment house

Telephonic communications – Private or single line system – Having transducer circuitry
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Intercom with transducer enclosure to attenuate resonant frequen

Telephonic communications – Private or single line system – Doorbell system
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Intercommunication system

Telephonic communications – Private or single line system – Doorbell system
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Internal telephone intercom system

Telephonic communications – Private or single line system – Doorbell system
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Interphone system

Telephonic communications – Private or single line system – Doorbell system
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0
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