FR458415A - Automatic telephone exchange system - Google Patents

Automatic telephone exchange system

Info

Publication number
FR458415A
FR458415A FR458415DA FR458415A FR 458415 A FR458415 A FR 458415A FR 458415D A FR458415D A FR 458415DA FR 458415 A FR458415 A FR 458415A
Authority
FR
France
Prior art keywords
exchange system
telephone exchange
automatic telephone
automatic
telephone
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.)
Automatic Electric Co
Original Assignee
Automatic Electric Co
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 Automatic Electric Co filed Critical Automatic Electric Co
Application granted granted Critical
Publication of FR458415A publication Critical patent/FR458415A/en
Expired legal-status Critical Current

Links

FR458415D 1913-04-07 1913-04-07 Automatic telephone exchange system Expired FR458415A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR458415T 1913-04-07

Publications (1)

Publication Number Publication Date
FR458415A true FR458415A (en) 1913-10-10

Family

ID=43351129

Family Applications (1)

Application Number Title Priority Date Filing Date
FR458415D Expired FR458415A (en) 1913-04-07 1913-04-07 Automatic telephone exchange system

Country Status (1)

Country Link
FR (1) FR458415A (en)

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