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公开(公告)号:US3538535A
公开(公告)日:1970-11-10
申请号:US3538535D
申请日:1967-06-15
Applicant: STANDARD OIL CO
Inventor: GINSBURGH IRWIN , WRIGHT LAWRENCE T , PENNINGTON BENJAMIN D
IPC: A47L1/08
CPC classification number: A47L1/08
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公开(公告)号:US3472285A
公开(公告)日:1969-10-14
申请号:US3472285D
申请日:1967-03-24
Applicant: STANDARD OIL CO
Inventor: GINSBURGH IRWIN , PENNINGTON BENJAMIN D
IPC: F16L55/164 , F16L55/18
CPC classification number: F16L55/164 , Y10T137/0452 , Y10T137/4891
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