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发明名称
BACK FLOW PREVENTIVE DEVICE
摘要
申请公布号
JPH11138600(A)
申请公布日期
1999.05.25
申请号
JP19970308661
申请日期
1997.11.11
申请人
SUMITOMO HEAVY IND LTD
发明人
NISHIO OKITO;SAKAMOTO ICHIRO
分类号
B29C45/52;(IPC1-7):B29C45/52
主分类号
B29C45/52
代理机构
代理人
主权项
地址
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