CA926779A - Status signalling system - Google Patents

Status signalling system

Info

Publication number
CA926779A
CA926779A CA926779A CA926779DA CA926779A CA 926779 A CA926779 A CA 926779A CA 926779 A CA926779 A CA 926779A CA 926779D A CA926779D A CA 926779DA CA 926779 A CA926779 A CA 926779A
Authority
CA
Canada
Prior art keywords
signalling system
status signalling
status
signalling
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
CA926779A
Inventor
J. Head William
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.)
TORONTO CABLE AND TOWER RENTALS Ltd
Original Assignee
TORONTO CABLE AND TOWER RENTALS Ltd
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 TORONTO CABLE AND TOWER RENTALS Ltd filed Critical TORONTO CABLE AND TOWER RENTALS Ltd
Application granted granted Critical
Publication of CA926779A publication Critical patent/CA926779A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
    • G08B5/22—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission
    • G08B5/36—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission using visible light sources

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
CA926779A 1971-12-23 1971-12-23 Status signalling system Expired CA926779A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA130946 1971-12-23

Publications (1)

Publication Number Publication Date
CA926779A true CA926779A (en) 1973-05-22

Family

ID=4091881

Family Applications (1)

Application Number Title Priority Date Filing Date
CA926779A Expired CA926779A (en) 1971-12-23 1971-12-23 Status signalling system

Country Status (1)

Country Link
CA (1) CA926779A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0314587A1 (en) * 1987-10-30 1989-05-03 K.M. Innovation Device for the transmission of information in a restaurant

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0314587A1 (en) * 1987-10-30 1989-05-03 K.M. Innovation Device for the transmission of information in a restaurant
FR2622718A1 (en) * 1987-10-30 1989-05-05 Kalfoun Jean Claude DEVICE FOR TRANSMITTING INFORMATION IN A RESTAURANT

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