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发明名称
Sanitary apparatus with air gap
摘要
申请公布号
US2187738(A)
申请公布日期
1940.01.23
申请号
US19390255401
申请日期
1939.02.09
申请人
JOHN B. PIERCE FOUNDATION
发明人
GROENIGER WILLIAM C.
分类号
E03D9/052
主分类号
E03D9/052
代理机构
代理人
主权项
地址
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