NL4105C - Electric carbon filament bulb with gas filling - Google Patents

Electric carbon filament bulb with gas filling

Info

Publication number: NL4105C
Authority: NL; Netherlands
Prior art keywords: gas filling; carbon filament; filament bulb; electric carbon; electric
Prior art date: 1913-12-31

Application number

NL5214A

Other languages

Dutch (nl)

Original Assignee

Siemens Ag

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.)

1913-12-31

Filing date

1914-09-10

Publication date

1914-09-10

1914-09-10 Application filed by Siemens Ag filed Critical Siemens Ag

1914-09-10 Application granted granted Critical

1914-09-10 Publication of NL4105C publication Critical patent/NL4105C/en

Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/50—Selection of substances for gas fillings; Specified pressure thereof
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/58—Cooling arrangements

NL5214A 1913-12-31 1914-09-10 Electric carbon filament bulb with gas filling NL4105C (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE333357T		1913-12-31

Publications (1)

Publication Number	Publication Date
NL4105C true NL4105C (en)	1914-09-10

Family

ID=38123970

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NL5214A NL4105C (en)	1913-12-31	1914-09-10	Electric carbon filament bulb with gas filling

Country Status (3)

Country	Link
DE (2)	DE333357C (en)
FR (1)	FR512878A (en)
NL (1)	NL4105C (en)

1913
- 1913-12-31 DE DE1913333357D patent/DE333357C/en not_active Expired
1914
- 1914-03-05 DE DES41576D patent/DE357686C/en not_active Expired
- 1914-09-10 NL NL5214A patent/NL4105C/en active
1920
- 1920-04-01 FR FR512878D patent/FR512878A/en not_active Expired

Also Published As

Publication number	Publication date
DE333357C (en)	1921-02-22
DE357686C (en)	1922-08-29
FR512878A (en)	1921-02-02

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