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C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
C03B17/00—Forming molten glass by flowing-out, pushing-out, extruding or drawing downwardly or laterally from forming slits or by overflowing over lips
C03B17/04—Forming tubes or rods by drawing from stationary or rotating tools or from forming nozzles
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FR690908D1930-02-041930-02-04Procédé et appareil pour la fabrication continue de tubes ou de baguettes de verre
ExpiredFR690908A
(fr)