BE420180A - - Google Patents

Info

Publication number
BE420180A
BE420180A BE420180DA BE420180A BE 420180 A BE420180 A BE 420180A BE 420180D A BE420180D A BE 420180DA BE 420180 A BE420180 A BE 420180A
Authority
BE
Belgium
Application number
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.)
Publication of BE420180A publication Critical patent/BE420180A/xx

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B27/00—Alarm systems in which the alarm condition is signalled from a central station to a plurality of substations

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
BE420180D 1936-02-22 BE420180A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT488442X 1936-02-22

Publications (1)

Publication Number Publication Date
BE420180A true BE420180A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Family

ID=3675082

Family Applications (1)

Application Number Title Priority Date Filing Date
BE420180D BE420180A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1936-02-22

Country Status (3)

Country Link
BE (1) BE420180A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR818193A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB488442A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2709801A (en) * 1952-03-31 1955-05-31 William S Sprague Blackout indicator

Also Published As

Publication number Publication date
FR818193A (fr) 1937-09-20
GB488442A (en) 1938-07-07

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