FR986232A - Photoelectric measuring device - Google Patents

Photoelectric measuring device

Info

Publication number
FR986232A
FR986232A FR986232DA FR986232A FR 986232 A FR986232 A FR 986232A FR 986232D A FR986232D A FR 986232DA FR 986232 A FR986232 A FR 986232A
Authority
FR
France
Prior art keywords
measuring device
photoelectric measuring
photoelectric
measuring
Prior art date
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
French (fr)
Inventor
Andre Lallemand
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.)
IND DE E C GRAM Ets
Original Assignee
IND DE E C GRAM Ets
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 IND DE E C GRAM Ets filed Critical IND DE E C GRAM Ets
Application granted granted Critical
Publication of FR986232A publication Critical patent/FR986232A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J40/00—Photoelectric discharge tubes not involving the ionisation of a gas
FR986232D 1949-05-16 1949-05-16 Photoelectric measuring device Expired FR986232A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR986232T 1949-05-16

Publications (1)

Publication Number Publication Date
FR986232A true FR986232A (en) 1951-07-30

Family

ID=9537935

Family Applications (1)

Application Number Title Priority Date Filing Date
FR986232D Expired FR986232A (en) 1949-05-16 1949-05-16 Photoelectric measuring device

Country Status (1)

Country Link
FR (1) FR986232A (en)

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