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发明名称
Worm press
摘要
申请公布号
US2246045(A)
申请公布日期
1941.06.17
申请号
US19380224671
申请日期
1938.08.13
申请人
WALTHER H. DUISBERG
发明人
HIRSCHBERG GERHARD
分类号
B30B9/12
主分类号
B30B9/12
代理机构
代理人
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