NL53880C - - Google Patents

Info

Publication number: NL53880C
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.)

1938-01-28

Publication of NL53880C publication Critical patent/NL53880C/xx

Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/58—Cooling arrangements
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/28—Envelopes; Vessels
- H01K1/34—Double wall vessels
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps

NL53880D 1938-01-28 NL53880C (enrdf_load_html_response)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CH512803X		1938-01-28

Publications (1)

Publication Number	Publication Date
NL53880C true NL53880C (enrdf_load_html_response)

Family

ID=4517539

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NL53880D NL53880C (enrdf_load_html_response)	1938-01-28

Country Status (6)

Country	Link
US (1)	US2188945A (enrdf_load_html_response)
CH (1)	CH204631A (enrdf_load_html_response)
DE (1)	DE741917C (enrdf_load_html_response)
FR (1)	FR849076A (enrdf_load_html_response)
GB (1)	GB512803A (enrdf_load_html_response)
NL (1)	NL53880C (enrdf_load_html_response)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN102792096A (zh) *	2010-02-08	2012-11-21	欧勒·K·尼尔森	一种蒸汽冷却的灯

0
- NL NL53880D patent/NL53880C/xx active
1938
- 1938-01-28 CH CH204631D patent/CH204631A/fr unknown
- 1938-03-16 GB GB8166/38A patent/GB512803A/en not_active Expired
1939
- 1939-01-14 US US250902A patent/US2188945A/en not_active Expired - Lifetime
- 1939-01-18 FR FR849076D patent/FR849076A/fr not_active Expired
- 1939-01-21 DE DES135496D patent/DE741917C/de not_active Expired

Also Published As

Publication number	Publication date
FR849076A (fr)	1939-11-14
US2188945A (en)	1940-02-06
CH204631A (fr)	1939-05-15
DE741917C (de)	1943-11-19
GB512803A (en)	1939-09-26

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