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发明名称
Operation of hydrogel bead-forming tower
摘要
申请公布号
US2773840(A)
申请公布日期
1956.12.11
申请号
US19520310432
申请日期
1952.09.19
申请人
SOCONY MOBIL OIL COMPANY, INC.
发明人
DREW ROBERT D.
分类号
B01J2/08;B01J21/00
主分类号
B01J2/08
代理机构
代理人
主权项
地址
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