FR430916A - Call or signal devices for telephone apparatus - Google Patents

Call or signal devices for telephone apparatus

Info

Publication number
FR430916A
FR430916A FR430916DA FR430916A FR 430916 A FR430916 A FR 430916A FR 430916D A FR430916D A FR 430916DA FR 430916 A FR430916 A FR 430916A
Authority
FR
France
Prior art keywords
call
telephone apparatus
signal devices
devices
signal
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)
Inventor
Addis Jerome Dunton
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 FR430916A publication Critical patent/FR430916A/en
Expired legal-status Critical Current

Links

FR430916D 1910-07-07 1911-06-12 Call or signal devices for telephone apparatus Expired FR430916A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US430916XA 1910-07-07 1910-07-07

Publications (1)

Publication Number Publication Date
FR430916A true FR430916A (en) 1911-10-27

Family

ID=43350544

Family Applications (1)

Application Number Title Priority Date Filing Date
FR430916D Expired FR430916A (en) 1910-07-07 1911-06-12 Call or signal devices for telephone apparatus

Country Status (1)

Country Link
FR (1) FR430916A (en)

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