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经营范围
发明名称
Wedge coupled joint
摘要
申请公布号
US1823971(A)
申请公布日期
1931.09.22
申请号
US19300495659
申请日期
1930.11.14
申请人
ERLANDSON EMIL M
发明人
ERLANDSON EMIL M.
分类号
F16D1/04
主分类号
F16D1/04
代理机构
代理人
主权项
地址
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