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发明名称
Ventilating device
摘要
申请公布号
US1972076(A)
申请公布日期
1934.09.04
申请号
US19330683249
申请日期
1933.08.02
申请人
CROSS GUY C
发明人
CROSS GUY C.
分类号
A47K13/00;E03D9/05
主分类号
A47K13/00
代理机构
代理人
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地址
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