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发明名称
SELF LOCKING DEVICE
摘要
申请公布号
CA325902(A)
申请公布日期
1932.09.13
申请号
CAD325902
申请日期
申请人
WILLIAM F. HECKMAN
发明人
WILLIAM F. HECKMAN
分类号
主分类号
代理机构
代理人
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