FR452744A - Telephone system - Google Patents

Telephone system

Info

Publication number
FR452744A
FR452744A FR452744DA FR452744A FR 452744 A FR452744 A FR 452744A FR 452744D A FR452744D A FR 452744DA FR 452744 A FR452744 A FR 452744A
Authority
FR
France
Prior art keywords
telephone system
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 FR452744A publication Critical patent/FR452744A/en
Expired legal-status Critical Current

Links

FR452744D 1912-11-05 1912-11-05 Telephone system Expired FR452744A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR452744T 1912-11-05

Publications (1)

Publication Number Publication Date
FR452744A true FR452744A (en) 1913-05-22

Family

ID=43350993

Family Applications (1)

Application Number Title Priority Date Filing Date
FR452744D Expired FR452744A (en) 1912-11-05 1912-11-05 Telephone system

Country Status (1)

Country Link
FR (1) FR452744A (en)

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