FR18398E - Switching system for automatic telephone installations in which the switchboards of the central station are served by employees instead of being operated by subscribers - Google Patents

Switching system for automatic telephone installations in which the switchboards of the central station are served by employees instead of being operated by subscribers

Info

Publication number
FR18398E
FR18398E FR18398DA FR18398E FR 18398 E FR18398 E FR 18398E FR 18398D A FR18398D A FR 18398DA FR 18398 E FR18398 E FR 18398E
Authority
FR
France
Prior art keywords
switchboards
subscribers
served
operated
switching system
Prior art date
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.)
Expired
Application number
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens and Halske AG
Siemens Corp
Original Assignee
Siemens and Halske AG
Siemens Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens and Halske AG, Siemens Corp filed Critical Siemens and Halske AG
Application granted granted Critical
Publication of FR18398E publication Critical patent/FR18398E/en
Expired legal-status Critical Current

Links

FR18398D 1909-04-20 1913-11-05 Switching system for automatic telephone installations in which the switchboards of the central station are served by employees instead of being operated by subscribers Expired FR18398E (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR402215T 1909-04-20
FR18397T 1913-11-05
FR18398T 1913-11-05

Publications (1)

Publication Number Publication Date
FR18398E true FR18398E (en) 1914-04-01

Family

ID=44260201

Family Applications (1)

Application Number Title Priority Date Filing Date
FR18398D Expired FR18398E (en) 1909-04-20 1913-11-05 Switching system for automatic telephone installations in which the switchboards of the central station are served by employees instead of being operated by subscribers

Country Status (1)

Country Link
FR (1) FR18398E (en)

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