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公开(公告)号:US3003933A
公开(公告)日:1961-10-10
申请号:US73107358
申请日:1958-04-21
Applicant: NESBITT ATKINSON JAMES THOMAS
Inventor: NESBITT ATKINSON JAMES THOMAS
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公开(公告)号:US2871171A
公开(公告)日:1959-01-27
申请号:US58394356
申请日:1956-05-10
Applicant: NESBITT ATKINSON JAMES THOMAS
Inventor: NESBITT ATKINSON JAMES THOMAS
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