NL50898C - - Google Patents

Info

Publication number: NL50898C
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.)

1937-02-13

Publication of NL50898C publication Critical patent/NL50898C/xx

Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/52—Cooling arrangements; Heating arrangements; Means for circulating gas or vapour within the discharge space

NL50898D 1937-02-13 NL50898C (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE202655X		1937-02-13

Publications (1)

Publication Number	Publication Date
NL50898C true NL50898C (en)

Family

ID=5772561

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NL50898D NL50898C (en)	1937-02-13

Country Status (6)

Country	Link
US (1)	US2160648A (en)
BE (1)	BE426311A (en)
CH (1)	CH202655A (en)
FR (1)	FR833498A (en)
GB (1)	GB494068A (en)
NL (1)	NL50898C (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2435299A (en) *	1943-12-27	1948-02-03	Edwin C Weiskopf	Microscope projecting and viewing apparatus
US2435300A (en) *	1945-06-02	1948-02-03	Edwin C Weiskopf	Projector for microscopes and other magnifying devices
US2477396A (en) *	1946-08-27	1949-07-26	Edwin C Weiskopf	Projecting microscope and viewing device
US2642521A (en) *	1949-05-26	1953-06-16	Ozalid Co Ltd	End connection for tubular lamps

0
- BE BE426311D patent/BE426311A/xx unknown
- NL NL50898D patent/NL50898C/xx active
1938
- 1938-02-05 US US189006A patent/US2160648A/en not_active Expired - Lifetime
- 1938-02-10 GB GB4240/38A patent/GB494068A/en not_active Expired
- 1938-02-11 FR FR833498D patent/FR833498A/en not_active Expired
- 1938-02-12 CH CH202655D patent/CH202655A/en unknown

Also Published As

Publication number	Publication date
FR833498A (en)	1938-10-21
US2160648A (en)	1939-05-30
BE426311A (en)
CH202655A (en)	1939-01-31
GB494068A (en)	1938-10-19

Publication	Publication Date	Title
BE420085R (en)	1937-03-31
BE421431A (en)	1937-08-31
BE419666A (en)
BE421290A (en)	1937-05-31
BE421282A (en)
BE421280A (en)
BE412505A (en)
BE421055A (en)	1937-05-31
BE421017A (en)
BE420975A (en)	1937-05-31
BE413076A (en)
BE420934A (en)	1937-06-30
BE420815A (en)
BE420798A (en)	1937-04-30
BE420715A (en)
BE420680A (en)
BE420616A (en)
BE420607A (en)	1937-04-30
BE426311A (en)
BE420486A (en)
BE420466A (en)
BE420409A (en)	1937-04-30
BE420383A (en)
BE420365A (en)
BE420107A (en)