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经营范围
发明名称
Automatic rotary valve
摘要
申请公布号
US2131025(A)
申请公布日期
1938.09.27
申请号
US19360078515
申请日期
1936.05.07
申请人
ATELIERS NEYRET-BEYLIER & PICEARD-PICTET
发明人
DANEL PIERRE FRANCOIS
分类号
F16K31/24
主分类号
F16K31/24
代理机构
代理人
主权项
地址
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