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经营范围
发明名称
Motor dropper
摘要
申请公布号
US2721517(A)
申请公布日期
1955.10.25
申请号
US19520305461
申请日期
1952.08.20
申请人
WORKMAN EVERLY J
发明人
WORKMAN EVERLY J.
分类号
F42B15/36
主分类号
F42B15/36
代理机构
代理人
主权项
地址
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