BE420180A - - Google Patents

Info

Publication number: BE420180A
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.)

1936-02-22

Publication of BE420180A publication Critical patent/BE420180A/xx

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 (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number	Publication Date
BE420180A true BE420180A (enrdf_load_stackoverflow)

Family

ID=3675082

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE420180D BE420180A (enrdf_load_stackoverflow)	1936-02-22

Country Status (3)

Country	Link
BE (1)	BE420180A (enrdf_load_stackoverflow)
FR (1)	FR818193A (enrdf_load_stackoverflow)
GB (1)	GB488442A (enrdf_load_stackoverflow)

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

0
- BE BE420180D patent/BE420180A/xx unknown
1937
- 1937-02-22 FR FR818193D patent/FR818193A/fr not_active Expired
- 1937-02-22 GB GB5320/37A patent/GB488442A/en not_active Expired

Also Published As

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

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