FR946294A - Further training in compensating devices for electrical measuring instruments - Google Patents

Further training in compensating devices for electrical measuring instruments

Info

Publication number: FR946294A
Authority: FR; France
Prior art keywords: measuring instruments; further training; electrical measuring; compensating devices; compensating
Prior art date: 1946-05-07
Legal status (The legal status 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 status listed.): Expired

Application number

Other languages

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

GAF Chemicals Corp

Original Assignee

General Aniline and Film Corp

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.)

1946-05-07

Filing date

1947-05-07

Publication date

1949-05-30

1947-05-07 Application filed by General Aniline and Film Corp filed Critical General Aniline and Film Corp

1949-05-30 Application granted granted Critical

1949-05-30 Publication of FR946294A publication Critical patent/FR946294A/en

Status Expired legal-status Critical Current

Classifications

- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/27—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection ; circuits for computing concentration

Landscapes

Physics & Mathematics (AREA)
Engineering & Computer Science (AREA)
Mathematical Physics (AREA)
Theoretical Computer Science (AREA)
Spectroscopy & Molecular Physics (AREA)
Health & Medical Sciences (AREA)
Life Sciences & Earth Sciences (AREA)
Chemical & Material Sciences (AREA)
Analytical Chemistry (AREA)
Biochemistry (AREA)
General Health & Medical Sciences (AREA)
General Physics & Mathematics (AREA)
Immunology (AREA)
Pathology (AREA)
Measurement Of Current Or Voltage (AREA)
Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)

FR946294D 1946-05-07 1947-05-07 Further training in compensating devices for electrical measuring instruments Expired FR946294A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US656056XA	1946-05-07	1946-05-07

Publications (1)

Publication Number	Publication Date
FR946294A true FR946294A (en)	1949-05-30

Family

ID=22063864

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR946294D Expired FR946294A (en)	1946-05-07	1947-05-07	Further training in compensating devices for electrical measuring instruments

Country Status (3)

Country	Link
DE (1)	DE886633C (en)
FR (1)	FR946294A (en)
GB (1)	GB656056A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2762975A (en) *	1952-08-02	1956-09-11	Western Electric Co	Differential voltmeters
DE1221356B (en) *	1959-04-27	1966-07-21	Licentia Gmbh	Circuit arrangement for moving coil measuring instruments to influence the display characteristics

1947
- 1947-04-08 GB GB9328/47A patent/GB656056A/en not_active Expired
- 1947-05-07 FR FR946294D patent/FR946294A/en not_active Expired
1949
- 1949-01-01 DE DEP30679A patent/DE886633C/en not_active Expired

Also Published As

Publication number	Publication date
DE886633C (en)	1953-08-17
GB656056A (en)	1951-08-08

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