FR727455A - Improvements to photoelectric cells - Google Patents

Improvements to photoelectric cells

Info

Publication number
FR727455A
FR727455A FR727455DA FR727455A FR 727455 A FR727455 A FR 727455A FR 727455D A FR727455D A FR 727455DA FR 727455 A FR727455 A FR 727455A
Authority
FR
France
Prior art keywords
photoelectric cells
photoelectric
cells
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)
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.)
Electrical Research Products Inc
Original Assignee
Electrical Research Products Inc
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 Electrical Research Products Inc filed Critical Electrical Research Products Inc
Application granted granted Critical
Publication of FR727455A publication Critical patent/FR727455A/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
    • H01J40/02—Details
    • H01J40/04—Electrodes
    • H01J40/06—Photo-emissive cathodes
FR727455D 1930-08-11 1931-07-28 Improvements to photoelectric cells Expired FR727455A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US381608XA 1930-08-11 1930-08-11
US727455XA 1930-08-11 1930-08-11
US619402XA 1930-08-11 1930-08-11

Publications (1)

Publication Number Publication Date
FR727455A true FR727455A (en) 1932-06-18

Family

ID=27365345

Family Applications (1)

Application Number Title Priority Date Filing Date
FR727455D Expired FR727455A (en) 1930-08-11 1931-07-28 Improvements to photoelectric cells

Country Status (2)

Country Link
FR (1) FR727455A (en)
GB (1) GB381608A (en)

Also Published As

Publication number Publication date
GB381608A (en) 1932-10-10

Similar Documents

Publication Publication Date Title
FR38057E (en) Improvements to photoelectric cells
FR690673A (en) Improvements to photoelectric cells
FR719842A (en) Improvements to photoelectric cells
FR723393A (en) Photoelectric cell
FR712542A (en) Improvements to photoelectric cells
FR718972A (en) Improvements to photoelectric cells
FR726278A (en) Improvements to photoelectric cells
FR724351A (en) Improvements to electrolyte cells
FR714381A (en) Improvements to photoelectric cells
FR717354A (en) Improvements to photoelectric cells
FR727455A (en) Improvements to photoelectric cells
FR724155A (en) Photoelectric cell
FR668997A (en) Improvements to photoelectric cells
FR681623A (en) Improvements to photoelectric cells
FR726622A (en) Photoelectric cell
FR710889A (en) Improvements to photoelectric cells
FR727683A (en) Improvements to photoelectric cells
FR681397A (en) Improvements relating to photoelectric cells
FR683107A (en) Improvements relating to photoelectric cells
FR667963A (en) Improvements to photoelectric cells
FR695103A (en) Improvements to photoelectric cells
FR695104A (en) Improvements to photoelectric cells
FR696548A (en) Improvements to photoelectric cells
FR697652A (en) Improvements to photoelectric cells
FR698335A (en) Improvements to photoelectric cells