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经营范围
发明名称
Fire hydrant
摘要
申请公布号
US1800010(A)
申请公布日期
1931.04.07
申请号
US19270180631
申请日期
1927.04.04
申请人
DEAN EMERSON
发明人
EMERSON DEAN
分类号
E03B9/02
主分类号
E03B9/02
代理机构
代理人
主权项
地址
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