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经营范围
发明名称
Kronenblockeinrichtung
摘要
申请公布号
DE592494(C)
申请公布日期
1934.02.08
申请号
DE1931R083187D
申请日期
1931.10.31
申请人
REGAN FORGE AND ENGINEERING COMPANY
发明人
分类号
B66D3/06;E21B19/02
主分类号
B66D3/06
代理机构
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