FR941908A - Dispositif téléphonique - Google Patents

Dispositif téléphonique

Info

Publication number
FR941908A
FR941908A FR941908DA FR941908A FR 941908 A FR941908 A FR 941908A FR 941908D A FR941908D A FR 941908DA FR 941908 A FR941908 A FR 941908A
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
Other languages
English (en)
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 Laboratories Inc
Original Assignee
Automatic Electric Laboratories Inc
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 Laboratories Inc filed Critical Automatic Electric Laboratories Inc
Application granted granted Critical
Publication of FR941908A publication Critical patent/FR941908A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/60—Semi-automatic systems, i.e. in which the numerical selection of the outgoing line is under the control of an operator

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
FR941908D 1940-06-08 1947-02-17 Dispositif téléphonique Expired FR941908A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US941908XA 1940-06-08 1940-06-08

Publications (1)

Publication Number Publication Date
FR941908A true FR941908A (fr) 1949-01-25

Family

ID=22243700

Family Applications (1)

Application Number Title Priority Date Filing Date
FR941908D Expired FR941908A (fr) 1940-06-08 1947-02-17 Dispositif téléphonique

Country Status (1)

Country Link
FR (1) FR941908A (fr)

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