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公开(公告)号：US2979002A
公开(公告)日：1961-04-11
申请号：US63832157
申请日：1957-02-05
Applicant: MEFINA SA
Inventor： RAMOU CASAS-ROBERT , ROLANDO GIANINAZZI
IPC: D05B19/00
CPC classification number: D05B19/00
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