FR866738A - Calculateur-annonciateur de taxes téléphoniques - Google Patents

Calculateur-annonciateur de taxes téléphoniques

Info

Publication number
FR866738A
FR866738A FR866738DA FR866738A FR 866738 A FR866738 A FR 866738A FR 866738D A FR866738D A FR 866738DA FR 866738 A FR866738 A FR 866738A
Authority
FR
France
Prior art keywords
announcer
tax calculator
telephone
telephone tax
calculator
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.)
Electrical Research Products Inc
Original Assignee
Electrical Research Products 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 Electrical Research Products Inc filed Critical Electrical Research Products Inc
Application granted granted Critical
Publication of FR866738A publication Critical patent/FR866738A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/38—Charging, billing or metering by apparatus other than mechanical step-by-step counter type

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
FR866738D 1939-08-23 1940-08-14 Calculateur-annonciateur de taxes téléphoniques Expired FR866738A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US866738XA 1939-08-23 1939-08-23

Publications (1)

Publication Number Publication Date
FR866738A true FR866738A (fr) 1941-08-30

Family

ID=22200121

Family Applications (1)

Application Number Title Priority Date Filing Date
FR866738D Expired FR866738A (fr) 1939-08-23 1940-08-14 Calculateur-annonciateur de taxes téléphoniques

Country Status (1)

Country Link
FR (1) FR866738A (fr)

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