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发明名称
PERFECTIONNEMENTS AUX HUBLOTS D'OBSERVATION ETANCHES, POUR ENCEINTES SOUS VIDE, ET A LEURS PROCEDES DE FABRICATION
摘要
申请公布号
FR2619186(B1)
申请公布日期
1989.12.01
申请号
FR19870010976
申请日期
1987.08.03
申请人
GRANDJEAN DANIEL
发明人
分类号
B01J3/00;E06B5/12;G02B7/00;(IPC1-7):F16J15/08;E06B1/56;E06B5/10;F16J12/00
主分类号
B01J3/00
代理机构
代理人
主权项
地址
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