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公开(公告)号:US2431123A
公开(公告)日:1947-11-18
申请号:US60589845
申请日:1945-07-19
Applicant: KAHN LEO M
Inventor: KAHN LEO M
IPC: D06F71/08
CPC classification number: D06F71/08
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公开(公告)号:US2045148A
公开(公告)日:1936-06-23
申请号:US57435131
申请日:1931-11-11
Applicant: KAHN LEO M
Inventor: KAHN LEO M
IPC: D06F71/08
CPC classification number: D06F71/08
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公开(公告)号:US2020839A
公开(公告)日:1935-11-12
申请号:US56577331
申请日:1931-09-29
Applicant: KAHN LEO M
Inventor: KAHN LEO M
IPC: D06F71/06
CPC classification number: D06F71/06
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公开(公告)号:US3320624A
公开(公告)日:1967-05-23
申请号:US38583564
申请日:1964-07-24
Applicant: KAHN LEO M
Inventor: KAHN LEO M
IPC: D06F37/22
CPC classification number: D06F37/22
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公开(公告)号:US3247690A
公开(公告)日:1966-04-26
申请号:US18680662
申请日:1962-04-11
Applicant: KAHN LEO M
Inventor: KAHN LEO M
IPC: D06F43/02
CPC classification number: D06F43/02
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公开(公告)号:US2588535A
公开(公告)日:1952-03-11
申请号:US56960944
申请日:1944-12-23
Applicant: KAHN LEO M
Inventor: KAHN LEO M
CPC classification number: D06F39/088 , D06F23/02
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公开(公告)号:US2528595A
公开(公告)日:1950-11-07
申请号:US66611946
申请日:1946-04-30
Applicant: KAHN LEO M
Inventor: KAHN LEO M
CPC classification number: D06F65/00 , D06F67/005
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公开(公告)号:US2528594A
公开(公告)日:1950-11-07
申请号:US61003545
申请日:1945-08-10
Applicant: KAHN LEO M
Inventor: KAHN LEO M
IPC: D06F23/02
CPC classification number: D06F23/02
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公开(公告)号:US2383723A
公开(公告)日:1945-08-28
申请号:US27297239
申请日:1939-05-11
Applicant: KAHN LEO M
Inventor: KAHN LEO M
IPC: D06F71/08
CPC classification number: D06F71/08
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公开(公告)号:US2248710A
公开(公告)日:1941-07-08
申请号:US14234537
申请日:1937-05-13
Applicant: KAHN LEO M , KAHN FRANK J
Inventor: KAHN LEO M , KAHN FRANK J
IPC: D06F71/12
CPC classification number: D06F71/12
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