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发明名称
Hoppering mechanisms for pen connectors
摘要
申请公布号
US2924355(A)
申请公布日期
1960.02.09
申请号
US19570695158
申请日期
1957.11.07
申请人
EARL BIRKETT
发明人
BIRKETT EARL
分类号
B65G47/14
主分类号
B65G47/14
代理机构
代理人
主权项
地址
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