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发明名称
TRAILER HITCH
摘要
申请公布号
CA694968(A)
申请公布日期
1964.09.29
申请号
CAD694968
申请日期
申请人
ERVIN L. HERRMANN
发明人
ERVIN L. HERRMANN
分类号
主分类号
代理机构
代理人
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