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发明名称
VACUUM PUMP
摘要
申请公布号
CA583507(A)
申请公布日期
1959.09.22
申请号
CAD583507
申请日期
申请人
EDWARD J. BEACH
发明人
EDWARD J. BEACH
分类号
主分类号
代理机构
代理人
主权项
地址
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