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发明名称
FRACTURE DETECTING DEVICE
摘要
申请公布号
CA319536(A)
申请公布日期
1932.02.02
申请号
CAD319536
申请日期
申请人
HARRY VAN DYKEN
发明人
HARRY VAN DYKEN
分类号
主分类号
代理机构
代理人
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