LandOfFree - US Patents - Listing for Recording, communication, or information retrieval equipment

Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Intercom

Intercom

Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Intercom

Intercom base unit

Recording – communication – or information retrieval equipment – Computer – data processor equipment

Intercom door answering unit

Recording – communication – or information retrieval equipment – Computer – data processor equipment

Intercom master control unit

Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Intercom

Intercom master station

Recording – communication – or information retrieval equipment – Computer – data processor equipment

Intercom room station unit

Recording – communication – or information retrieval equipment – Computer – data processor equipment

Intercom speaker and receiver

Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Intercom

Intercom sub-station

Recording – communication – or information retrieval equipment – Computer – data processor equipment

Intercom telephone set housing

Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Intercom

Intercom unit

Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Video

Intercommunication apparatus

Recording – communication – or information retrieval equipment – Computer – data processor equipment

Intercommunication apparatus

Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Video

Intercommunication apparatus

Recording – communication – or information retrieval equipment – Computer – data processor equipment

Intercommunication apparatus

Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment

Intercommunication apparatus without a hand set

Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment

Intercommunication system

Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment

Intercommunication system

Recording – communication – or information retrieval equipment – Computer – data processor equipment

Intercommunication telephone handset and stand therefor

Recording – communication – or information retrieval equipment – Computer – data processor equipment

Intercommunication unit