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经营范围
发明名称
Valve spring compressor
摘要
申请公布号
US1878280(A)
申请公布日期
1932.09.20
申请号
US19310566195
申请日期
1931.10.01
申请人
BRADLEY LAW RAY
发明人
LAW RAY BRADLEY
分类号
B25B27/26
主分类号
B25B27/26
代理机构
代理人
主权项
地址
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