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Telephonic communication systems adapted for combination with other electrical systems
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Industry
CPC
H04M11/00
This industry / category may be too specific. Please go to a parent level for more data
Parent Industries
H
ELECTRICITY
H04
Electric communication
H04M
TELEPHONIC COMMUNICATION
Current Industry
H04M11/00
Telephonic communication systems adapted for combination with other electrical systems
Sub Industries
H04M11/002
with telemetering systems
H04M11/005
using recorded signals
H04M11/007
with remote control systems
H04M11/02
with bell or annunciator systems
H04M11/022
Paging systems
H04M11/025
Door telephones
H04M11/027
Annunciator systems for hospitals
H04M11/04
with fire, police, burglar, or other alarm systems
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using recorded signals
H04M11/06
Simultaneous speech and telegraphic or other data transmission over the same conductors
H04M11/062
using different frequency bands for speech and other data
H04M11/064
Data transmission during pauses in telephone conversation
H04M11/066
Telephone sets adapted for data transmision
H04M11/068
using time division multiplex techniques
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adapted for optional reception of entertainment or informative matter
H04M11/085
using a television receiver
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with dictation recording and playback systems
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CPC
H04M11/00
