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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
H01J9/24—Manufacture or joining of vessels, leading-in conductors or bases
H01J9/30—Manufacture of bases
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FR18112D1912-07-101913-08-02Perfectionnements aux culots de lampes à incandescence
ExpiredFR18112E
(fr)