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发明名称
EXPANDING UNION-PIECE
摘要
申请公布号
PL54708(Y1)
申请公布日期
1996.12.31
申请号
PL19930098329U
申请日期
1993.07.20
申请人
INSTYTUT GORNICTWA NAFTOWEGO I GAZOWNICTWA
发明人
OPALKA STANISLAW
分类号
F16L41/02;F16L47/00;(IPC1-7):F16L41/02
主分类号
F16L41/02
代理机构
代理人
主权项
地址
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