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公开(公告)号:US3192154A
公开(公告)日:1965-06-29
申请号:US22313662
申请日:1962-09-12
Applicant: BURTON ROBERT E
Inventor: BURTON ROBERT E
IPC: C02F1/28
CPC classification number: C02F1/286
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公开(公告)号:US2661782A
公开(公告)日:1953-12-08
申请号:US27983852
申请日:1952-04-01
Applicant: BURTON ROBERT E
Inventor: BURTON ROBERT E
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4.
公开(公告)号:US2888051A
公开(公告)日:1959-05-26
申请号:US62477356
申请日:1956-11-28
Applicant: BURTON ROBERT E
Inventor: BURTON ROBERT E
IPC: B27L1/00
CPC classification number: B27L1/005
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