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经营范围
发明名称
Reversible feeding mechanism
摘要
申请公布号
US2979992(A)
申请公布日期
1961.04.18
申请号
US19540436748
申请日期
1954.06.14
申请人
COLBY RICHARD H
发明人
COLBY RICHARD H.
分类号
F41A9/32
主分类号
F41A9/32
代理机构
代理人
主权项
地址
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