GB576948A - Improvements in or relating to electric signalling systems - Google Patents

Improvements in or relating to electric signalling systems

Info

Publication number
GB576948A
GB576948A GB3989/44A GB398944A GB576948A GB 576948 A GB576948 A GB 576948A GB 3989/44 A GB3989/44 A GB 3989/44A GB 398944 A GB398944 A GB 398944A GB 576948 A GB576948 A GB 576948A
Authority
GB
United Kingdom
Prior art keywords
microphones
lamp
vehicles
aerodrome
microphone
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
GB3989/44A
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.)
STUART SEYMOUR HILL
STC PLC
Original Assignee
STUART SEYMOUR HILL
Standard Telephone and Cables PLC
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 BE467302D priority Critical patent/BE467302A/xx
Application filed by STUART SEYMOUR HILL, Standard Telephone and Cables PLC filed Critical STUART SEYMOUR HILL
Priority to GB3989/44A priority patent/GB576948A/en
Publication of GB576948A publication Critical patent/GB576948A/en
Priority to FR939176D priority patent/FR939176A/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G5/00—Traffic control systems for aircraft
    • G08G5/20—Arrangements for acquiring, generating, sharing or displaying traffic information
    • G08G5/22—Arrangements for acquiring, generating, sharing or displaying traffic information located on the ground
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/01—Detecting movement of traffic to be counted or controlled
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G5/00—Traffic control systems for aircraft
    • G08G5/50—Navigation or guidance aids
    • G08G5/51—Navigation or guidance aids for control when on the ground, e.g. taxiing or rolling

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Traffic Control Systems (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
GB3989/44A 1944-03-03 1944-03-03 Improvements in or relating to electric signalling systems Expired GB576948A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BE467302D BE467302A (cs) 1944-03-03
GB3989/44A GB576948A (en) 1944-03-03 1944-03-03 Improvements in or relating to electric signalling systems
FR939176D FR939176A (fr) 1944-03-03 1946-05-25 Perfectionnements aux indicateurs de passage de véhicules

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3989/44A GB576948A (en) 1944-03-03 1944-03-03 Improvements in or relating to electric signalling systems

Publications (1)

Publication Number Publication Date
GB576948A true GB576948A (en) 1946-04-29

Family

ID=9768672

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3989/44A Expired GB576948A (en) 1944-03-03 1944-03-03 Improvements in or relating to electric signalling systems

Country Status (3)

Country Link
BE (1) BE467302A (cs)
FR (1) FR939176A (cs)
GB (1) GB576948A (cs)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2325998A1 (fr) * 1975-09-23 1977-04-22 Paris Aeroport Localisation sismique des avions au sol

Also Published As

Publication number Publication date
BE467302A (cs)
FR939176A (fr) 1948-11-05

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