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发明名称
Ventilator
摘要
申请公布号
US1798400(A)
申请公布日期
1931.03.31
申请号
US19290382386
申请日期
1929.07.31
申请人
DANIELS ERNEST C
发明人
DANIELS ERNEST C.
分类号
E06B7/02
主分类号
E06B7/02
代理机构
代理人
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地址
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