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发明名称
HEAT INSULATING MATERIAL
摘要
申请公布号
CA404823(A)
申请公布日期
1942.05.19
申请号
CAD404823
申请日期
申请人
CANADIAN GYPSUM COMPANY LIMITED
发明人
RICHARD ERICSON
分类号
主分类号
代理机构
代理人
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地址
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