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公开(公告)号：US3321177A
公开(公告)日：1967-05-23
申请号：US38788964
申请日：1964-08-06
Applicant: SPECIALTIES DEV CORP
Inventor： FENDEL EDWIN B , EDUARD TREIRAT , WEIBEL WILLIAM M
IPC: F16K31/06
CPC classification number: F16K31/0655 , F16K31/0651
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