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发明名称
Weasand and method for preparing the same
摘要
申请公布号
US1945866(A)
申请公布日期
1934.02.06
申请号
US19320615330
申请日期
1932.06.04
申请人
BERTH. LEVI & CO., INC.
发明人
RAGALS WILLIAM C.
分类号
A22C17/14
主分类号
A22C17/14
代理机构
代理人
主权项
地址
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