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发明名称
Hand operated pick
摘要
申请公布号
US2684839(A)
申请公布日期
1954.07.27
申请号
US19480050206
申请日期
1948.09.20
申请人
JOHN RICE CHARLES
发明人
RICE CHARLES JOHN
分类号
B23B31/113;B23B31/18;B25D7/00;B26B23/00;B27L7/00;B27L7/06
主分类号
B23B31/113
代理机构
代理人
主权项
地址
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