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Document Type and Number:
Japanese Patent JPH0227290
Kind Code:
B2
Abstract:
Glass batch materials and the like are liquefied in a first stage and the liquefied materials are subjected to submerged combustion in a second stage.

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JPS5632348PHOTOCHROMIC GLASS AND ITS MANUFACTURE
Inventors:
HENRII PIITAA HANEKEN
Application Number:
JP15921985A
Publication Date:
June 15, 1990
Filing Date:
July 18, 1985
Export Citation:
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Assignee:
PPG INDUSTRIES INC
International Classes:
C03B5/00; B01J6/00; C03B3/02; C03B5/04; C03B5/187; C03B5/235



 
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