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发明名称
Package
摘要
申请公布号
US2997160(A)
申请公布日期
1961.08.22
申请号
US19580772015
申请日期
1958.11.05
申请人
INTERNATIONAL MINERALS & CHEMICAL CORPORATION
发明人
JR. SAMUEL P. MARSHALL,
分类号
A01C21/00
主分类号
A01C21/00
代理机构
代理人
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