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发明名称
Pressure relief valve for pressure cookers
摘要
申请公布号
GB660548(A)
申请公布日期
1951.11.07
申请号
GB19490031983
申请日期
1949.12.13
申请人
LANDERS, FRARY & CLARK
发明人
分类号
A47J27/09
主分类号
A47J27/09
代理机构
代理人
主权项
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