CH551121A - RECEIVER AND TRANSMITTER DEVICE AS ADDITIONAL DEVICE TO A TELEPHONE SUBSCRIBER STATION. - Google Patents

RECEIVER AND TRANSMITTER DEVICE AS ADDITIONAL DEVICE TO A TELEPHONE SUBSCRIBER STATION.

Info

Publication number
CH551121A
CH551121A CH1243972A CH1243972A CH551121A CH 551121 A CH551121 A CH 551121A CH 1243972 A CH1243972 A CH 1243972A CH 1243972 A CH1243972 A CH 1243972A CH 551121 A CH551121 A CH 551121A
Authority
CH
Switzerland
Prior art keywords
receiver
subscriber station
telephone subscriber
transmitter
additional
Prior art date
Application number
CH1243972A
Other languages
German (de)
Original Assignee
Fracassi Bruno
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
Priority claimed from IT5256771A external-priority patent/IT1013012B/en
Priority claimed from IT5360271A external-priority patent/IT1045055B/en
Application filed by Fracassi Bruno filed Critical Fracassi Bruno
Publication of CH551121A publication Critical patent/CH551121A/en

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B21/00—Teaching, or communicating with, the blind, deaf or mute

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Physics & Mathematics (AREA)
  • Educational Administration (AREA)
  • Educational Technology (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Telephone Set Structure (AREA)
CH1243972A 1971-08-30 1972-08-22 RECEIVER AND TRANSMITTER DEVICE AS ADDITIONAL DEVICE TO A TELEPHONE SUBSCRIBER STATION. CH551121A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT5256771A IT1013012B (en) 1971-08-30 1971-08-30 TRANSMITTING RECEIVER DEVICE FOR COMMUNICATIONS BETWEEN OR WITH THE DEAF, MUTE AND WEAK OF HEARING WITH THE AID OF NORMAL TELEPHONE DEVICE
IT5360271A IT1045055B (en) 1971-10-21 1971-10-21 TRANSMITTER RIOE DEVICE FOR COMMUNICATIONS BETWEEN AND WITH DEAF MYTHS AND HEARING DERIVATIONS WITH THE AID OF NORMAL TELEPHONE

Publications (1)

Publication Number Publication Date
CH551121A true CH551121A (en) 1974-06-28

Family

ID=26329478

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1243972A CH551121A (en) 1971-08-30 1972-08-22 RECEIVER AND TRANSMITTER DEVICE AS ADDITIONAL DEVICE TO A TELEPHONE SUBSCRIBER STATION.

Country Status (7)

Country Link
JP (1) JPS4833709A (en)
BE (1) BE799530Q (en)
CH (1) CH551121A (en)
DE (1) DE2242253A1 (en)
FR (1) FR2152015A5 (en)
GB (1) GB1400042A (en)
NL (1) NL7211774A (en)

Also Published As

Publication number Publication date
DE2242253A1 (en) 1973-03-08
JPS4833709A (en) 1973-05-12
BE799530Q (en) 1973-08-31
FR2152015A5 (en) 1973-04-20
GB1400042A (en) 1975-07-16
NL7211774A (en) 1973-03-02

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Legal Events

Date Code Title Description
PL Patent ceased