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发明名称
SCREW THREAD
摘要
申请公布号
CA326137(A)
申请公布日期
1932.09.20
申请号
CAD326137
申请日期
申请人
THE BRITISH DARDELET THREADLOCK LIMITED
发明人
HENRY SNOWDEN ROWELL
分类号
主分类号
代理机构
代理人
主权项
地址
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