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发明名称
Booster drive for truck trailers
摘要
申请公布号
US2140109(A)
申请公布日期
1938.12.13
申请号
US19370132454
申请日期
1937.03.22
申请人
KELLAR FRED A
发明人
KELLAR FRED A.
分类号
B62D59/00
主分类号
B62D59/00
代理机构
代理人
主权项
地址
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