CH217624A - Device for displaying the burning time of electric incandescent lamps, hot cathode tubes and the like. - Google Patents

Device for displaying the burning time of electric incandescent lamps, hot cathode tubes and the like.

Info

Publication number
CH217624A
CH217624A CH217624DA CH217624A CH 217624 A CH217624 A CH 217624A CH 217624D A CH217624D A CH 217624DA CH 217624 A CH217624 A CH 217624A
Authority
CH
Switzerland
Prior art keywords
displaying
incandescent lamps
hot cathode
burning time
cathode tubes
Prior art date
Application number
Other languages
German (de)
Inventor
Gloeilampenfabrieken N Philips
Original Assignee
Philips 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 Nv filed Critical Philips Nv
Publication of CH217624A publication Critical patent/CH217624A/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/42—Measurement or testing during manufacture

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
CH217624D 1937-07-12 1938-07-12 Device for displaying the burning time of electric incandescent lamps, hot cathode tubes and the like. CH217624A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE217624X 1937-07-12

Publications (1)

Publication Number Publication Date
CH217624A true CH217624A (en) 1941-10-31

Family

ID=5830861

Family Applications (1)

Application Number Title Priority Date Filing Date
CH217624D CH217624A (en) 1937-07-12 1938-07-12 Device for displaying the burning time of electric incandescent lamps, hot cathode tubes and the like.

Country Status (5)

Country Link
BE (1) BE429096A (en)
CH (1) CH217624A (en)
FR (1) FR840585A (en)
GB (1) GB501252A (en)
NL (1) NL54814C (en)

Also Published As

Publication number Publication date
NL54814C (en)
GB501252A (en) 1939-02-23
FR840585A (en) 1939-04-27
BE429096A (en)

Similar Documents

Publication Publication Date Title
CH217624A (en) Device for displaying the burning time of electric incandescent lamps, hot cathode tubes and the like.
FR882190A (en) Gas stove
FR801501A (en) Improvements to incandescent electric lamps, and the like
AT155593B (en) Heat-resistant and tight insulating bushing.
CH201114A (en) Device for the joint operation of thermal radiators and electrical discharge tubes.
CH226336A (en) Pressed glass base for an electron tube and associated socket.
CA382969A (en) Gas heating apparatus
AU112963B2 (en) An improved gas burner for heating purposes
CA384657A (en) Heating furnace
ES148641A1 (en) SOME IMPROVEMENTS IN THE MANUFACTURE PROCEDURE OF SCREENS, LAMPS AND LIGHTING APPLIANCES IN GENERAL
CA383358A (en) Air heating furnace
CA382405A (en) Heat treatment furnace
AU155240A (en) An improved gas burner for heating purposes
CA397879A (en) Gas heating apparatus
DK54671C (en) Gas stove.
CA389787A (en) Heating apparatus and oven
CA266191A (en) Heating, cooling and lighting fixture
CA266192A (en) Heating, cooling and lighting fixture
GR8095B (en) METHOD OF HEATING RADIO LAMPS.
CA387052A (en) Heating furnace
CA390602A (en) Heating furnace
CA385481A (en) Furnace flue heat utilization apparatus
CA399124A (en) Heating furnace
CA394418A (en) Heating furnace
FR865857A (en) gas heater