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发明名称
Hinged finger adjustable pipe rack
摘要
申请公布号
US2311932(A)
申请公布日期
1943.02.23
申请号
US19420433043
申请日期
1942.03.02
申请人
DECKARD CHARLES L
发明人
DECKARD CHARLES L.
分类号
E21B19/14
主分类号
E21B19/14
代理机构
代理人
主权项
地址
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