FR413136A - Perfectionnements relatifs à la téléphonie - Google Patents

Perfectionnements relatifs à la téléphonie

Info

Publication number
FR413136A
FR413136A FR413136DA FR413136A FR 413136 A FR413136 A FR 413136A FR 413136D A FR413136D A FR 413136DA FR 413136 A FR413136 A FR 413136A
Authority
FR
France
Prior art keywords
telephony
improvements relating
relating
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
English (en)
Inventor
Sidney George Brown
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR413136A publication Critical patent/FR413136A/fr
Expired legal-status Critical Current

Links

FR413136D 1909-02-19 1910-02-07 Perfectionnements relatifs à la téléphonie Expired FR413136A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB413136X 1909-02-19

Publications (1)

Publication Number Publication Date
FR413136A true FR413136A (fr) 1910-08-01

Family

ID=43350182

Family Applications (1)

Application Number Title Priority Date Filing Date
FR413136D Expired FR413136A (fr) 1909-02-19 1910-02-07 Perfectionnements relatifs à la téléphonie

Country Status (1)

Country Link
FR (1) FR413136A (fr)

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