GB685206A - Improvements in or relating to busying circuits for automatic signalling systems - Google Patents

Improvements in or relating to busying circuits for automatic signalling systems

Info

Publication number
GB685206A
GB685206A GB10742/49A GB1074249A GB685206A GB 685206 A GB685206 A GB 685206A GB 10742/49 A GB10742/49 A GB 10742/49A GB 1074249 A GB1074249 A GB 1074249A GB 685206 A GB685206 A GB 685206A
Authority
GB
United Kingdom
Prior art keywords
valve
contact
relay
valves
test device
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
GB10742/49A
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of GB685206A publication Critical patent/GB685206A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Relay Circuits (AREA)
GB10742/49A 1948-04-26 1949-04-22 Improvements in or relating to busying circuits for automatic signalling systems Expired GB685206A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL273263X 1948-04-26

Publications (1)

Publication Number Publication Date
GB685206A true GB685206A (en) 1952-12-31

Family

ID=19782017

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10742/49A Expired GB685206A (en) 1948-04-26 1949-04-22 Improvements in or relating to busying circuits for automatic signalling systems

Country Status (5)

Country Link
CH (1) CH273263A (enrdf_load_stackoverflow)
DE (1) DE810157C (enrdf_load_stackoverflow)
FR (1) FR985193A (enrdf_load_stackoverflow)
GB (1) GB685206A (enrdf_load_stackoverflow)
NL (2) NL140146B (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
CH273263A (de) 1951-01-31
DE810157C (de) 1951-08-06
NL140146B (nl)
NL72038C (enrdf_load_stackoverflow)
FR985193A (enrdf_load_stackoverflow) 1951-07-16

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