FR19667E - Telephone device - Google Patents

Telephone device

Info

Publication number
FR19667E
FR19667E FR19667A FR19667DA FR19667E FR 19667 E FR19667 E FR 19667E FR 19667 A FR19667 A FR 19667A FR 19667D A FR19667D A FR 19667DA FR 19667 E FR19667 E FR 19667E
Authority
FR
France
Prior art keywords
telephone device
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
FR19667A
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.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
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.)
Publication date
Application granted granted Critical
Publication of FR19667E publication Critical patent/FR19667E/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/58—Anti-side-tone circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Prepayment Telephone Systems (AREA)
FR19667A 1913-04-04 Telephone device Expired FR19667E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR191405640X 1913-04-04

Publications (1)

Publication Number Publication Date
FR19667E true FR19667E (en) 1915-05-05

Family

ID=32340005

Family Applications (2)

Application Number Title Priority Date Filing Date
FR19667A Expired FR19667E (en) 1913-04-04 Telephone device
FR456723A Expired FR456723A (en) 1913-04-04 1913-04-04 Telephone device

Family Applications After (1)

Application Number Title Priority Date Filing Date
FR456723A Expired FR456723A (en) 1913-04-04 1913-04-04 Telephone device

Country Status (2)

Country Link
FR (2) FR456723A (en)
GB (1) GB191405640A (en)

Also Published As

Publication number Publication date
FR456723A (en) 1913-09-03
GB191405640A (en) 1914-08-07

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