Gas-filled electric light bulb for series connection
DE728077C
Method and device for pressing glass objects
DE729920C
Process for the production of frames with lamp bases for electric light bulbs with tempered glass or quartz glass bulbs
DE695508C
Base for electric light bulbs with built-in safety wire
DE743454C
Device for melting off the connecting tube of gas-filled electric incandescent lamps or discharge tubes, which is under internal excess pressure
DE692106C
Process for the airtight union of the metallic bulb and the metallic foot of electrical discharge tubes
DE744296C
Electron tubes
DE722447C
Reaction mixture for the development of alkaline earth metal vapor in discharge tubes with metal pistons and method for using this mixture for gettering
DE693782C
Process for producing a raw material mixture suitable for melting glass
DE689039C
Method for the base of electric light bulbs, discharge tubes and the like. like apparatus
DE718813C
Process for the production of lamp bases made of hard or quartz glass for electric high pressure incandescent lamps
DE690597C
Method and device for the melting of excess gas pressure
DE705390C
Gas-filled electric incandescent lamp with one or more blackening-reducing bodies attached in the direction of the gas flow
DE745742C
Process for the manufacture of oxide cathodes
DE687324C
Gas-filled electric light bulb with a safety wire built into a power supply
GB479961A
Improvements in cathode ray tubes
DE650625C
Process for the production of coiled incandescent bodies for electric light bulbs
DE679012C
Process for the production of double or multiple helical, completely slack-free, large crystalline tungsten glow bodies
DE722679C
Electric discharge tubes with directly heated cathode
