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经营范围
发明名称
Dispositif à ajutage pour l'injection ou l'aspiration
摘要
申请公布号
FR1120871(A)
申请公布日期
1956.07.16
申请号
FRD1120871
申请日期
1955.03.16
申请人
发明人
CARMICHAEL ALASTAIR MACPHERSON
分类号
E21D5/012;F16L41/08
主分类号
E21D5/012
代理机构
代理人
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