FR380921A - Tableau de communications téléphoniques - Google Patents

Tableau de communications téléphoniques

Info

Publication number
FR380921A
FR380921A FR380921DA FR380921A FR 380921 A FR380921 A FR 380921A FR 380921D A FR380921D A FR 380921DA FR 380921 A FR380921 A FR 380921A
Authority
FR
France
Prior art keywords
telephone communications
communications table
telephone
communications
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
Edward Alfred Graham
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.)
ALFRED GRAHAM AND C
Original Assignee
ALFRED GRAHAM AND C
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 ALFRED GRAHAM AND C filed Critical ALFRED GRAHAM AND C
Application granted granted Critical
Publication of FR380921A publication Critical patent/FR380921A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M5/00—Manual exchanges
    • H04M5/02—Constructional details

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
FR380921D 1906-06-28 1907-06-28 Tableau de communications téléphoniques Expired FR380921A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB380921X 1906-06-28

Publications (1)

Publication Number Publication Date
FR380921A true FR380921A (fr) 1907-12-21

Family

ID=1427112

Family Applications (1)

Application Number Title Priority Date Filing Date
FR380921D Expired FR380921A (fr) 1906-06-28 1907-06-28 Tableau de communications téléphoniques

Country Status (1)

Country Link
FR (1) FR380921A (fr)

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