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经营范围
发明名称
Periodic rotary metering and distributing valve
摘要
申请公布号
US2483949(A)
申请公布日期
1949.10.04
申请号
US19430505255
申请日期
1943.10.06
申请人
WASHINGTON ROBERT W
发明人
WASHINGTON ROBERT W.
分类号
F02D3/02;F02M41/16;F02M69/50
主分类号
F02D3/02
代理机构
代理人
主权项
地址
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