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经营范围
发明名称
Cable-passing swivel
摘要
申请公布号
US3033596(A)
申请公布日期
1962.05.08
申请号
US19600027681
申请日期
1960.05.09
申请人
PEARRING JERRY M
发明人
PEARRING JERRY M.
分类号
F21V21/29
主分类号
F21V21/29
代理机构
代理人
主权项
地址
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