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发明名称
ROTARY MACHINES
摘要
申请公布号
CA872097(A)
申请公布日期
1971.06.01
申请号
CAD872097
申请日期
申请人
NATIONAL RESEARCH DEVELOPMENT CORPORATION
发明人
JOHN M. CLARKE
分类号
主分类号
代理机构
代理人
主权项
地址
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