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发明名称
摘要
申请公布号
JP2949576(B2)
申请公布日期
1999.09.13
申请号
JP19980020856
申请日期
1998.02.02
申请人
NIPPON PIRAA KOGYO KK
发明人
NISHIO KYOSHI
分类号
F16L21/02;F16L19/04;F16L33/22;F16L47/04;(IPC1-7):F16L21/02
主分类号
F16L21/02
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