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发明名称
Picking screen
摘要
申请公布号
US1830070(A)
申请公布日期
1931.11.03
申请号
US19270182265
申请日期
1927.04.09
申请人
ROBERTS AND SCHAEFER COMPANY
发明人
MILLER RICHARD G.
分类号
B07B13/00
主分类号
B07B13/00
代理机构
代理人
主权项
地址
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