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C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
C03B15/00—Drawing glass upwardly from the melt
C03B15/02—Drawing glass sheets
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FR613697D1926-03-301926-03-30Régulateur automatique pour débit de gaz et notamment pour canal d'étirage dans le procédé d'étirage mécanique du verre
ExpiredFR613697A
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