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发明名称
Spreader
摘要
申请公布号
US2743932(A)
申请公布日期
1956.05.01
申请号
US19500183613
申请日期
1950.09.07
申请人
WILLIAM M. QUINN
发明人
WESTER RALPH C.
分类号
A01C15/18
主分类号
A01C15/18
代理机构
代理人
主权项
地址
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