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经营范围
发明名称
Pneumatic corer
摘要
申请公布号
US3139945(A)
申请公布日期
1964.07.07
申请号
US19630294457
申请日期
1963.07.11
申请人
DEL RE BENEDICT V;JULIUS CASTIGLIOLA
发明人
RE BENEDICT V. DEL;CASTIGLIOLA JULIUS
分类号
E21B25/18
主分类号
E21B25/18
代理机构
代理人
主权项
地址
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