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经营范围
发明名称
Draft gear
摘要
申请公布号
US2646894(A)
申请公布日期
1953.07.28
申请号
US19490135111
申请日期
1949.12.27
申请人
PIERCE RAYMOND C
发明人
PIERCE RAYMOND C.
分类号
B61G9/10
主分类号
B61G9/10
代理机构
代理人
主权项
地址
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