Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Siemens and Halske AG
Siemens Corp
Original Assignee
Siemens and Halske AG
Siemens Corp
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Filing date
Publication date
Application filed by Siemens and Halske AG, Siemens CorpfiledCriticalSiemens and Halske AG
Application grantedgrantedCritical
Publication of FR644616ApublicationCriticalpatent/FR644616A/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
H—ELECTRICITY
H04—ELECTRIC COMMUNICATION TECHNIQUE
H04M—TELEPHONIC COMMUNICATION
H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
H04M11/007—Telephonic communication systems specially adapted for combination with other electrical systems with remote control systems
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Engineering & Computer Science
(AREA)
Signal Processing
(AREA)
Automation & Control Theory
(AREA)
FR644616D1927-07-201927-11-09Disposition de connexion pour la transmission de nouvelles sur des lignes téléphoniques
ExpiredFR644616A
(fr)
Disposition de connexion pour lignes de communication dans les installations de transmission à distance, notamment dans les installations téléphoniques