NL38459C - - Google Patents

Info

Publication number: NL38459C
Authority: NL; Netherlands

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.)

1931-12-24

Publication of NL38459C publication Critical patent/NL38459C/xx

Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/70—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr
- H01J61/74—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr having a main light-emitting filling of difficult vaporisable metal vapour, e.g. sodium

NL38459D 1931-12-24 NL38459C (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
NL400388X		1931-12-24

Publications (1)

Publication Number	Publication Date
NL38459C true NL38459C (enrdf_load_stackoverflow)

Family

ID=19785886

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NL38459D NL38459C (enrdf_load_stackoverflow)	1931-12-24

Country Status (5)

Country	Link
US (1)	US1919933A (enrdf_load_stackoverflow)
DE (1)	DE604600C (enrdf_load_stackoverflow)
FR (1)	FR743225A (enrdf_load_stackoverflow)
GB (1)	GB400388A (enrdf_load_stackoverflow)
NL (1)	NL38459C (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2687471A (en) *	1948-05-01	1954-08-24	Western Union Telegraph Co	Concentrated arc discharge device
DE1022322B (de) *	1953-07-31	1958-01-09	Gen Electric Co Ltd	Elektrische Natriumdampfentladungslampe

0
- NL NL38459D patent/NL38459C/xx active
- FR FR743225D patent/FR743225A/fr not_active Expired
1932
- 1932-08-03 DE DEN34040D patent/DE604600C/de not_active Expired
- 1932-08-19 GB GB23327/32A patent/GB400388A/en not_active Expired
1933
- 1933-01-12 US US651385A patent/US1919933A/en not_active Expired - Lifetime

Also Published As

Publication number	Publication date
US1919933A (en)	1933-07-25
DE604600C (de)	1934-10-24
FR743225A (enrdf_load_stackoverflow)	1933-03-25
GB400388A (en)	1933-10-26

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