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发明名称
Refractory
摘要
申请公布号
US1893313(A)
申请公布日期
1933.01.03
申请号
US19280294601
申请日期
1928.07.21
申请人
HARTFORDEMPIRE COMPANY
发明人
WILLETTS PAUL G.
分类号
C04B35/18
主分类号
C04B35/18
代理机构
代理人
主权项
地址
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