FR632525A - - Google Patents

Info

Publication number
FR632525A
FR632525A FR632525DA FR632525A FR 632525 A FR632525 A FR 632525A FR 632525D A FR632525D A FR 632525DA FR 632525 A FR632525 A FR 632525A
Authority
FR
France
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)
Publication date
Application granted granted Critical
Publication of FR632525A publication Critical patent/FR632525A/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
    • H04M3/64—Arrangements for signalling the number or class of the calling line to the operator

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
FR632525D Expired FR632525A (cg-RX-API-DMAC10.html)

Publications (1)

Publication Number Publication Date
FR632525A true FR632525A (cg-RX-API-DMAC10.html) 1928-01-11

Family

ID=1541612

Family Applications (1)

Application Number Title Priority Date Filing Date
FR632525D Expired FR632525A (cg-RX-API-DMAC10.html)

Country Status (1)

Country Link
FR (1) FR632525A (cg-RX-API-DMAC10.html)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2527661A (en) * 1948-07-10 1950-10-31 Twentieth Cent Fox Film Corp Electric counter
US2998188A (en) * 1957-02-18 1961-08-29 Mast Dev Company Universal counter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2527661A (en) * 1948-07-10 1950-10-31 Twentieth Cent Fox Film Corp Electric counter
US2998188A (en) * 1957-02-18 1961-08-29 Mast Dev Company Universal counter

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