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FR756725A - Répétiteur téléphonique - Google Patents

Répétiteur téléphonique

Info

Publication number
FR756725A
FR756725A FR756725DA FR756725A FR 756725 A FR756725 A FR 756725A FR 756725D A FR756725D A FR 756725DA FR 756725 A FR756725 A FR 756725A
Authority
FR
France
Prior art keywords
telephone repeater
repeater
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)
Inventor
Pier Carlo Ricchiardi
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 filed Critical
Application granted granted Critical
Publication of FR756725A publication Critical patent/FR756725A/fr
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
    • H04M1/64—Automatic arrangements for answering calls; Automatic arrangements for recording messages for absent subscribers; Arrangements for recording conversations
    • H04M1/65—Recording arrangements for recording a message from the calling party
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C7/00—Separating solids from solids by electrostatic effect
    • B03C7/02—Separators
    • B03C7/08—Separators with material carriers in the form of belts
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/64—Automatic arrangements for answering calls; Automatic arrangements for recording messages for absent subscribers; Arrangements for recording conversations
    • H04M1/65—Recording arrangements for recording a message from the calling party
    • H04M1/652—Means for playing back the recorded messages by remote control over a telephone line

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephonic Communication Services (AREA)
  • Devices For Supply Of Signal Current (AREA)
FR756725D 1932-06-11 1933-06-09 Répétiteur téléphonique Expired FR756725A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT421059X 1932-06-11

Publications (1)

Publication Number Publication Date
FR756725A true FR756725A (fr) 1933-12-14

Family

ID=11253913

Family Applications (1)

Application Number Title Priority Date Filing Date
FR756725D Expired FR756725A (fr) 1932-06-11 1933-06-09 Répétiteur téléphonique

Country Status (4)

Country Link
US (1) US1993486A (fr)
BE (1) BE421059A (fr)
FR (1) FR756725A (fr)
GB (1) GB421059A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE756501C (de) * 1938-12-01 1954-10-11 Mueller Willy Anordnung zur Fernsteuerung eines Telephonographen

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE856621C (de) * 1939-02-12 1952-11-24 Schallband Syndikat A G Vorrichtung zur selbsttaetigen Aufnahme von Telefongespraechen
BE476355A (fr) * 1946-10-09
US2539139A (en) * 1949-07-14 1951-01-23 Jordaphone Corp Of America Telephone system for automatic answering, recording messages, and recording normal conversations
US2784254A (en) * 1951-01-05 1957-03-05 Lane John Dexter System for telephone answering and recording and for message recording and reproducing
US3212059A (en) * 1955-07-29 1965-10-12 Walter G Finch Pulse responsive drum control and readout circuit
US3286033A (en) * 1960-08-30 1966-11-15 Jerome H Lemelson Apparatus for magnetically recording and reproducing at a remote station over a telephone line
US3443032A (en) * 1965-06-19 1969-05-06 Nippon Electric Co Control system using continuous tone and pulsed code signals
US3600517A (en) * 1968-05-06 1971-08-17 David M Goodman Dial pulse decoders
US3684834A (en) * 1970-07-10 1972-08-15 Audrichron Co The Apparatus for remotely changing the message of an automatic announcing machine
US4122306A (en) * 1975-11-24 1978-10-24 Jacob Friedman Telephone answering apparatus providing selective message communication
JPS5342609A (en) * 1976-09-30 1978-04-18 Hashimoto Corp Automatic answering telephone system with remote control using multichannel recorder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE756501C (de) * 1938-12-01 1954-10-11 Mueller Willy Anordnung zur Fernsteuerung eines Telephonographen

Also Published As

Publication number Publication date
US1993486A (en) 1935-03-05
GB421059A (en) 1934-12-10
BE421059A (fr)

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