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公开(公告)号:US3175857A
公开(公告)日:1965-03-30
申请号:US29900863
申请日:1963-07-31
Applicant: LEWIS ROBERT E
Inventor: LEWIS ROBERT E
IPC: B60P3/34
CPC classification number: B60P3/341 , Y10S135/904
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2.Apparatus for automatically counting and sizing airborne particles 失效
Title translation: 用于自动计数和调整空气中颗粒的装置公开(公告)号:US2920525A
公开(公告)日:1960-01-12
申请号:US60385356
申请日:1956-08-13
Applicant: APPEL ARTHUR V , BETZ HOWARD T , FISHER MORRIS A , FOCHTMAN EDWARD G , ALVIN LIEBERMAN , ALEXANDER NELSON E , MURPHY JAMES L , MAXWELL DAINE C , LEWIS ROBERT E
Inventor: APPEL ARTHUR V , BETZ HOWARD T , FISHER MORRIS A , FOCHTMAN EDWARD G , ALVIN LIEBERMAN , ALEXANDER NELSON E , MURPHY JAMES L , MAXWELL DAINE C , LEWIS ROBERT E
CPC classification number: G01N21/255 , G06M11/00 , Y10S55/34
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公开(公告)号:US2810363A
公开(公告)日:1957-10-22
申请号:US53281155
申请日:1955-09-06
Applicant: LEWIS ROBERT E
Inventor: LEWIS ROBERT E
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公开(公告)号:US3232632A
公开(公告)日:1966-02-01
申请号:US27100263
申请日:1963-04-05
Applicant: LEWIS ROBERT E
Inventor: LEWIS ROBERT E
IPC: A63C11/22
CPC classification number: A63C11/222 , A41D19/0048 , A45B2009/025
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公开(公告)号:US2868960A
公开(公告)日:1959-01-13
申请号:US56409556
申请日:1956-02-07
Applicant: APPEL ARTHUR V , LEWIS ROBERT E
Inventor: APPEL ARTHUR V , LEWIS ROBERT E
IPC: G12B11/02
CPC classification number: G12B11/02
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公开(公告)号:US2709873A
公开(公告)日:1955-06-07
申请号:US37558553
申请日:1953-08-20
Applicant: LEWIS ROBERT E
Inventor: LEWIS ROBERT E
IPC: B24B13/015
CPC classification number: B24B13/015
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