NL57985C - - Google Patents

Info

Publication number: NL57985C
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.)

1937-07-09

Publication of NL57985C publication Critical patent/NL57985C/xx

Classifications

- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C3/00—Angle modulation
- H03C3/10—Angle modulation by means of variable impedance
- H03C3/12—Angle modulation by means of variable impedance by means of a variable reactive element
- H03C3/14—Angle modulation by means of variable impedance by means of a variable reactive element simulated by circuit comprising active element with at least three electrodes, e.g. reactance-tube circuit

NL57985D 1937-07-09 NL57985C (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US515940XA	1937-07-09	1937-07-09

Publications (1)

Publication Number	Publication Date
NL57985C true NL57985C (en)

Family

ID=21972249

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NL57985D NL57985C (en)	1937-07-09

Country Status (4)

Country	Link
BE (1)	BE428896A (en)
FR (1)	FR840443A (en)
GB (1)	GB515940A (en)
NL (1)	NL57985C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2218524A (en) *	1940-02-20	1940-10-22	Bell Telephone Labor Inc	Frequency modulation system
DE976238C (en) *	1953-05-28	1963-05-16	Telefunken Patent	Circuit of a feedback tube generator for frequency modulation with a large frequency deviation

0
- NL NL57985D patent/NL57985C/xx active
- BE BE428896D patent/BE428896A/xx unknown
1938
- 1938-06-10 GB GB17323/38A patent/GB515940A/en not_active Expired
- 1938-07-07 FR FR840443D patent/FR840443A/en not_active Expired

Also Published As

Publication number	Publication date
BE428896A (en)
GB515940A (en)	1939-12-19
FR840443A (en)	1939-04-25

Publication	Publication Date	Title
FR808483A (en)	1937-02-08
BE420085R (en)	1937-03-31
AT151505B (en)	1937-11-25
BE420975A (en)	1937-05-31
BE235779A (en)
BE386746A (en)
BE412505A (en)
BE413076A (en)
BE417149A (en)
BE417582A (en)
BE418783A (en)
BE419342A (en)	1937-02-27
BE419443A (en)
BE419523A (en)
BE419588A (en)
BE419666A (en)
BE419783A (en)
BE419812A (en)
BE419835A (en)
BE419889A (en)
BE419979A (en)
BE420057A (en)
BE420089A (en)
BE420107A (en)
BE420365A (en)