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经营范围
发明名称
Safety coupling
摘要
申请公布号
US2601012(A)
申请公布日期
1952.06.17
申请号
US19470767474
申请日期
1947.08.08
申请人
POLAROID CORPORATION
发明人
WOLFF OTTO E.
分类号
F16D43/21
主分类号
F16D43/21
代理机构
代理人
主权项
地址
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