FR768036A - Automatic Telephone Call Dial Recorder - Google Patents

Automatic Telephone Call Dial Recorder

Info

Publication number
FR768036A
FR768036A FR768036DA FR768036A FR 768036 A FR768036 A FR 768036A FR 768036D A FR768036D A FR 768036DA FR 768036 A FR768036 A FR 768036A
Authority
FR
France
Prior art keywords
recorder
telephone call
automatic telephone
call dial
dial
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)
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.)
ABB Training Center GmbH and Co KG
Original Assignee
Hartmann and Braun AG
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 Hartmann and Braun AG filed Critical Hartmann and Braun AG
Application granted granted Critical
Publication of FR768036A publication Critical patent/FR768036A/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
    • H04M1/24—Arrangements for testing

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
FR768036D 1933-03-14 1934-01-29 Automatic Telephone Call Dial Recorder Expired FR768036A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE768036X 1933-03-14

Publications (1)

Publication Number Publication Date
FR768036A true FR768036A (en) 1934-07-30

Family

ID=6673594

Family Applications (1)

Application Number Title Priority Date Filing Date
FR768036D Expired FR768036A (en) 1933-03-14 1934-01-29 Automatic Telephone Call Dial Recorder

Country Status (1)

Country Link
FR (1) FR768036A (en)

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