CH502660A - Signal transmission system - Google Patents

Signal transmission system

Info

Publication number
CH502660A
CH502660A CH1361469A CH1361469A CH502660A CH 502660 A CH502660 A CH 502660A CH 1361469 A CH1361469 A CH 1361469A CH 1361469 A CH1361469 A CH 1361469A CH 502660 A CH502660 A CH 502660A
Authority
CH
Switzerland
Prior art keywords
signal transmission
transmission system
signal
transmission
Prior art date
Application number
CH1361469A
Other languages
German (de)
Inventor
Graenicher Heini Dr Prof
Original Assignee
Graenicher Heini Dr Prof
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 to BE755675D priority Critical patent/BE755675A/en
Application filed by Graenicher Heini Dr Prof filed Critical Graenicher Heini Dr Prof
Priority to CH1361469A priority patent/CH502660A/en
Priority to AT732670A priority patent/ATA732670A/en
Priority to DE19702041632 priority patent/DE2041632B2/en
Priority to FR7031778A priority patent/FR2060762A5/fr
Publication of CH502660A publication Critical patent/CH502660A/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
    • G09B5/00—Electrically-operated educational appliances

Landscapes

  • Engineering & Computer Science (AREA)
  • Business, Economics & Management (AREA)
  • Physics & Mathematics (AREA)
  • Educational Administration (AREA)
  • Educational Technology (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Lock And Its Accessories (AREA)
CH1361469A 1969-09-08 1969-09-08 Signal transmission system CH502660A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
BE755675D BE755675A (en) 1969-09-08 SIGNAL TRANSMISSION INSTALLATION, USED IN PARTICULAR IN GROUP TEACHING
CH1361469A CH502660A (en) 1969-09-08 1969-09-08 Signal transmission system
AT732670A ATA732670A (en) 1969-09-08 1970-08-11 DEVICE FOR THE STATISTICAL EVALUATION OF ANSWERS
DE19702041632 DE2041632B2 (en) 1969-09-08 1970-08-21 SIGNAL TRANSMISSION SYSTEM
FR7031778A FR2060762A5 (en) 1969-09-08 1970-09-01

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1361469A CH502660A (en) 1969-09-08 1969-09-08 Signal transmission system

Publications (1)

Publication Number Publication Date
CH502660A true CH502660A (en) 1971-01-31

Family

ID=4393901

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1361469A CH502660A (en) 1969-09-08 1969-09-08 Signal transmission system

Country Status (5)

Country Link
AT (1) ATA732670A (en)
BE (1) BE755675A (en)
CH (1) CH502660A (en)
DE (1) DE2041632B2 (en)
FR (1) FR2060762A5 (en)

Also Published As

Publication number Publication date
DE2041632A1 (en) 1971-04-08
BE755675A (en) 1971-02-15
ATA732670A (en) 1976-07-15
FR2060762A5 (en) 1971-06-18
DE2041632B2 (en) 1972-03-02

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Legal Events

Date Code Title Description
PL Patent ceased