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经营范围
发明名称
Chemical injector
摘要
申请公布号
US3109452(A)
申请公布日期
1963.11.05
申请号
US19620179332
申请日期
1962.03.13
申请人
HICKS JR GEORGE W
发明人
JR. GEORGE W. HICKS,
分类号
E21B43/34
主分类号
E21B43/34
代理机构
代理人
主权项
地址
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