Method of manufacturing a tube assembly for electric lamps

Details Method of manufacturing a tube assembly for electric lamps Method of manufacturing a tube assembly for electric lamps

1974-03-27

1976-05-18

Lake, Roy

Metal working

Barrier layer or semiconductor device making

Barrier layer device making

65 59B, H01J 918

Patent

active

039568083

ABSTRACT:
In a method of manufacturing a tube assembly for electric lamps in which a central supporting wire is supplied for the helical filament wire, according to the invention the supply of the supporting wire takes place via the exhaust tube.

REFERENCES:
patent: 1472456 (1923-10-01), Boardman
patent: 2267598 (1941-12-01), Thomas
patent: 2530168 (1950-11-01), Knochel et al.
patent: 2535582 (1950-12-01), Knochel et al.
patent: 3554241 (1971-01-01), Engel et al.
patent: 3689981 (1972-09-01), LaValle

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