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发明名称
SAFETY HITCH
摘要
申请公布号
CA385059(A)
申请公布日期
1939.11.14
申请号
CAD385059
申请日期
申请人
WILLIAM F. STAGGERS
发明人
WILLIAM F. STAGGERS
分类号
主分类号
代理机构
代理人
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地址
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