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发明名称
Trailer hitch
摘要
申请公布号
US1981443(A)
申请公布日期
1934.11.20
申请号
US19330676426
申请日期
1933.06.19
申请人
WINSOR JAMES G
发明人
WINSOR JAMES G.
分类号
B60D1/00
主分类号
B60D1/00
代理机构
代理人
主权项
地址
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