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发明名称
METHOD FOR PRODUCING HOLLOW NEEDLES
摘要
申请公布号
CA847663(A)
申请公布日期
1970.07.28
申请号
CAD847663
申请日期
申请人
NIELS BAY-SCHMITH
发明人
ERIK LAURITZEN
分类号
主分类号
代理机构
代理人
主权项
地址
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