FR2213490B1 - - Google Patents

Info

Publication number
FR2213490B1
FR2213490B1 FR7241381A FR7241381A FR2213490B1 FR 2213490 B1 FR2213490 B1 FR 2213490B1 FR 7241381 A FR7241381 A FR 7241381A FR 7241381 A FR7241381 A FR 7241381A FR 2213490 B1 FR2213490 B1 FR 2213490B1
Authority
FR
France
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
FR7241381A
Other languages
French (fr)
Other versions
FR2213490A1 (enExample
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.)
COMETA SA
Original Assignee
COMETA SA
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.)
Filing date
Publication date
Application filed by COMETA SA filed Critical COMETA SA
Priority to FR7241381A priority Critical patent/FR2213490B1/fr
Publication of FR2213490A1 publication Critical patent/FR2213490A1/fr
Application granted granted Critical
Publication of FR2213490B1 publication Critical patent/FR2213490B1/fr
Expired legal-status Critical Current

Links

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
    • G01N21/55—Specular reflectivity

Landscapes

  • Physics & Mathematics (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)
FR7241381A 1972-11-16 1972-11-16 Expired FR2213490B1 (enExample)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7241381A FR2213490B1 (enExample) 1972-11-16 1972-11-16

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7241381A FR2213490B1 (enExample) 1972-11-16 1972-11-16

Publications (2)

Publication Number Publication Date
FR2213490A1 FR2213490A1 (enExample) 1974-08-02
FR2213490B1 true FR2213490B1 (enExample) 1975-03-28

Family

ID=9107484

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7241381A Expired FR2213490B1 (enExample) 1972-11-16 1972-11-16

Country Status (1)

Country Link
FR (1) FR2213490B1 (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1160278A (en) * 1980-10-21 1984-01-10 Demetris E. Paraskevopoulos Toner concentration sensor

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH359783A (de) * 1958-06-20 1962-01-31 Rueger Ernst A Photoelektrische Abtasteinrichtung für Reflexions-Lichtsteuerungen

Also Published As

Publication number Publication date
FR2213490A1 (enExample) 1974-08-02

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Legal Events

Date Code Title Description
ST Notification of lapse