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发明名称
FLOOR DISCHARGING DEFECATOR
摘要
申请公布号
CA390689(A)
申请公布日期
1940.08.13
申请号
CAD390689
申请日期
申请人
JOHN B. PIERCE FOUNDATION
发明人
WILLIAM C. GROENIGER
分类号
主分类号
代理机构
代理人
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