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ELECTRO GARD
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ELECTRO GARD
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Publication of FR47220EpublicationCriticalpatent/FR47220E/fr
H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
H04M11/04—Telephonic communication systems specially adapted for combination with other electrical systems with alarm systems, e.g. fire, police or burglar alarm systems
H04M11/045—Telephonic communication systems specially adapted for combination with other electrical systems with alarm systems, e.g. fire, police or burglar alarm systems using recorded signals, e.g. speech
H—ELECTRICITY
H04—ELECTRIC COMMUNICATION TECHNIQUE
H04M—TELEPHONIC COMMUNICATION
H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
H04M11/04—Telephonic communication systems specially adapted for combination with other electrical systems with alarm systems, e.g. fire, police or burglar alarm systems
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Engineering & Computer Science
(AREA)
Signal Processing
(AREA)
FR47220D1934-10-201935-11-07Perfectionnements aux appareils d'alarme automatique pour signalisation téléphonique en cas de vol, incendie ou autre
ExpiredFR47220E
(fr)