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发明名称
Expanding camping trailer
摘要
申请公布号
US3013836(A)
申请公布日期
1961.12.19
申请号
US19570699218
申请日期
1957.11.27
申请人
GROH IRVIN L
发明人
GROH IRVIN L.
分类号
B60P3/34
主分类号
B60P3/34
代理机构
代理人
主权项
地址
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