FR833451A - Improvements to electric discharge tubes and devices incorporating them - Google Patents

Improvements to electric discharge tubes and devices incorporating them

Info

Publication number
FR833451A
FR833451A FR833451DA FR833451A FR 833451 A FR833451 A FR 833451A FR 833451D A FR833451D A FR 833451DA FR 833451 A FR833451 A FR 833451A
Authority
FR
France
Prior art keywords
electric discharge
discharge tubes
devices incorporating
incorporating
devices
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR833451A publication Critical patent/FR833451A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J43/00—Secondary-emission tubes; Electron-multiplier tubes
    • H01J43/02—Tubes in which one or a few electrodes are secondary-electron emitting electrodes
FR833451D 1937-02-12 1938-02-10 Improvements to electric discharge tubes and devices incorporating them Expired FR833451A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL201751X 1937-02-12

Publications (1)

Publication Number Publication Date
FR833451A true FR833451A (en) 1938-10-21

Family

ID=19778373

Family Applications (1)

Application Number Title Priority Date Filing Date
FR833451D Expired FR833451A (en) 1937-02-12 1938-02-10 Improvements to electric discharge tubes and devices incorporating them

Country Status (5)

Country Link
US (1) US2134407A (en)
BE (1) BE426298A (en)
CH (1) CH201751A (en)
FR (1) FR833451A (en)
GB (1) GB487044A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2442576A (en) * 1939-08-05 1948-06-01 Hartford Nat Bank & Trust Co Mixing tube
US2448559A (en) * 1944-05-05 1948-09-07 Raytheon Mfg Co Electron discharge tube
NL71107C (en) * 1947-09-03
US2615138A (en) * 1948-10-30 1952-10-21 Rca Corp Beam type electron tube

Also Published As

Publication number Publication date
US2134407A (en) 1938-10-25
BE426298A (en)
CH201751A (en) 1938-12-15
GB487044A (en) 1938-06-14

Similar Documents

Publication Publication Date Title
FR50493E (en) Improvements to discharge tubes
FR835633A (en) Improvements to electric discharge tubes
FR846160A (en) Improvements to discharge tubes
FR834094A (en) Electric discharge tube
FR855943A (en) Improvements made to electric discharge tubes
FR833451A (en) Improvements to electric discharge tubes and devices incorporating them
BE427227A (en) Electric discharge tubes
FR823346A (en) Improvements to electric discharge tubes and devices incorporating them
FR839242A (en) Improvements to electric discharge tubes and devices incorporating them
FR833705A (en) Improvements to electric discharge tubes and devices incorporating them
FR837981A (en) Improvements to electric discharge tubes and devices incorporating them
FR834122A (en) Electric discharge tube
FR832654A (en) Improvements to discharge tubes
FR844323A (en) Improvements to electric discharge tubes and devices that include them
FR848575A (en) Improvements to electric discharge tubes and devices incorporating them
FR820947A (en) Improvements made to electric discharge tubes and devices incorporating them
FR829835A (en) Improvements made to electric discharge tubes and devices incorporating them
FR821846A (en) Improvements made to electric discharge tubes and devices incorporating them
FR840473A (en) Electric discharge tube
FR841828A (en) Improvements to electric discharge tubes
FR841800A (en) Electric discharge tube
FR838557A (en) Electric discharge tube
FR838991A (en) Improvements to discharge tubes
FR833450A (en) Electric discharge tubes
FR872842A (en) Improvements made to electric discharge tubes