FR448217A - Telephone system - Google Patents

Telephone system

Info

Publication number
FR448217A
FR448217A FR448217DA FR448217A FR 448217 A FR448217 A FR 448217A FR 448217D A FR448217D A FR 448217DA FR 448217 A FR448217 A FR 448217A
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 FR448217A publication Critical patent/FR448217A/en
Expired legal-status Critical Current

Links

FR448217D 1911-10-21 1912-09-07 Telephone system Expired FR448217A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US448217XA 1911-10-21 1911-10-21

Publications (1)

Publication Number Publication Date
FR448217A true FR448217A (en) 1913-01-25

Family

ID=43350889

Family Applications (1)

Application Number Title Priority Date Filing Date
FR448217D Expired FR448217A (en) 1911-10-21 1912-09-07 Telephone system

Country Status (1)

Country Link
FR (1) FR448217A (en)

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