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发明名称
Mullite-bonded zircon pebbles
摘要
申请公布号
US2633623(A)
申请公布日期
1953.04.07
申请号
US19490104157
申请日期
1949.07.11
申请人
PHILLIPS PETROLEUM COMPANY
发明人
ROBINSON SAM P.
分类号
B01J21/00;C04B35/48
主分类号
B01J21/00
代理机构
代理人
主权项
地址
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