NL55441C - - Google Patents

Info

Publication number: NL55441C
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.)

1938-05-25

Publication of NL55441C publication Critical patent/NL55441C/xx

Classifications

- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06G—ANALOGUE COMPUTERS
- G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
- G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
- G06G7/22—Arrangements for performing computing operations, e.g. operational amplifiers for evaluating trigonometric functions; for conversion of co-ordinates; for computations involving vector quantities
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06G—ANALOGUE COMPUTERS
- G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
- G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
- G06G7/16—Arrangements for performing computing operations, e.g. operational amplifiers for multiplication or division

Landscapes

Engineering & Computer Science (AREA)
Physics & Mathematics (AREA)
Mathematical Physics (AREA)
Theoretical Computer Science (AREA)
General Physics & Mathematics (AREA)
Computer Hardware Design (AREA)
Software Systems (AREA)
Power Engineering (AREA)
Algebra (AREA)
Mathematical Analysis (AREA)
Mathematical Optimization (AREA)
Pure & Applied Mathematics (AREA)
Measurement Of Resistance Or Impedance (AREA)

NL55441D 1938-05-25 NL55441C (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CH520228X		1938-05-25

Publications (1)

Publication Number	Publication Date
NL55441C true NL55441C (fr)

Family

ID=4517903

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NL55441D NL55441C (fr)	1938-05-25

Country Status (5)

Country	Link
CH (2)	CH210859A (fr)
DE (1)	DE750780C (fr)
FR (2)	FR51216E (fr)
GB (2)	GB520228A (fr)
NL (1)	NL55441C (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2497883A (en) *	1943-01-28	1950-02-21	Sperry Corp	Electronic computer
US2652979A (en) *	1945-08-01	1953-09-22	Chance Britton	Arrangement for providing corrections in ground-position-indicating systems
BE502989A (fr) *	1950-05-06

0
- FR FR851948D patent/FR851948A/fr not_active Expired
- NL NL55441D patent/NL55441C/xx active
1938
- 1938-05-25 CH CH210859D patent/CH210859A/de unknown
- 1938-05-31 DE DEC54040D patent/DE750780C/de not_active Expired
- 1938-08-16 GB GB24159/38A patent/GB520228A/en not_active Expired
1939
- 1939-06-10 CH CH212584D patent/CH212584A/de unknown
1940
- 1940-05-30 FR FR51216D patent/FR51216E/fr not_active Expired
- 1940-06-06 GB GB9937/40A patent/GB541761A/en not_active Expired

Also Published As

Publication number	Publication date
GB520228A (en)	1940-04-18
CH212584A (de)	1940-11-30
FR851948A (fr)	1940-01-18
GB541761A (en)	1941-12-10
FR51216E (fr)	1941-12-20
DE750780C (de)	1945-01-26
CH210859A (de)	1940-08-15

Publication	Publication Date	Title
NL56492C (fr)
NL58574C (fr)
BE420003A (fr)
BE420642A (fr)
BE422629A (fr)
BE423383A (fr)
BE423866A (fr)
BE425656A (fr)
BE425826A (fr)	1938-02-28
BE425884A (fr)
BE425911A (fr)
BE426294A (fr)
BE426318A (fr)
BE426319A (fr)
BE426413A (fr)
BE426439A (fr)
BE426736A (fr)
BE426920A (fr)	1938-04-30
BE426985A (fr)
BE427068A (fr)
BE427269A (fr)
BE427315A (fr)	1938-05-31
BE427381A (fr)
BE131681A (fr)
BE427511A (fr)