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专利名称：Method of tempering glass sheets of
unequal thickness
发明人：Raymond L. Mang,Thomas W. Carr申请号：US05/773356申请日：19770301公开号：US04065284A公开日：19771227
摘要：Glass sheets of unequal thickness are tempered sequentially on one temperingline by employing a lightweight heating furnace within which each glass sheet may bebrought up to a thermal condition suitable for tempering by a two-stage heating cyclewhich differs from one glass thickness to another. Also disclosed are means fortemporarily adapting a conventional tempering line for carrying out such a process.
申请人：PPG INDUSTRIES, INC.
代理人：Dennis G. Millman
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