NL55182C - - Google Patents

Info

Publication number: NL55182C
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.)

1938-11-22

Publication of NL55182C publication Critical patent/NL55182C/xx

Classifications

- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/52—Circuit arrangements for protecting such amplifiers
- H03F1/54—Circuit arrangements for protecting such amplifiers with tubes only
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/52—Circuit arrangements for protecting such amplifiers
- H03F1/54—Circuit arrangements for protecting such amplifiers with tubes only
- H03F1/544—Protection of filaments

Landscapes

Engineering & Computer Science (AREA)
Power Engineering (AREA)
Emergency Alarm Devices (AREA)
Indication Of The Valve Opening Or Closing Status (AREA)

NL55182D 1938-11-22 NL55182C (c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GB231368X		1938-11-22

Publications (1)

Publication Number	Publication Date
NL55182C true NL55182C (c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html)

Family

ID=10190737

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NL55182D NL55182C (c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html)	1938-11-22

Country Status (4)

Country	Link
BE (1)	BE437120A (c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html)
CH (1)	CH231368A (c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html)
GB (1)	GB521714A (c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html)
NL (1)	NL55182C (c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html)

0
- BE BE437120D patent/BE437120A/xx unknown
- NL NL55182D patent/NL55182C/xx active
1938
- 1938-11-22 GB GB33952/38A patent/GB521714A/en not_active Expired
1939
- 1939-12-01 CH CH231368D patent/CH231368A/fr unknown

Also Published As

Publication number	Publication date
GB521714A (en)	1940-05-29
BE437120A (c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html)
CH231368A (fr)	1944-03-15

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