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公开(公告)号:US2645323A
公开(公告)日:1953-07-14
申请号:US19998850
申请日:1950-12-09
Applicant: IBM
Inventor: LUHN HANS P , JOHNSON RICHARD L
IPC: B41J5/36
CPC classification number: B41J5/36 , Y10S400/904
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公开(公告)号:US2641714A
公开(公告)日:1953-06-09
申请号:US24911151
申请日:1951-10-01
Applicant: IBM
Inventor: LUHN HANS P
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公开(公告)号:US2555750A
公开(公告)日:1951-06-05
申请号:US63785745
申请日:1945-12-29
Applicant: IBM
Inventor: LUHN HANS P
IPC: G06K13/077
CPC classification number: G06K13/077
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公开(公告)号:US2438067A
公开(公告)日:1948-03-16
申请号:US58325345
申请日:1945-03-17
Applicant: IBM
Inventor: LUHN HANS P
IPC: H01H29/26
CPC classification number: H01H29/26
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公开(公告)号:US2348141A
公开(公告)日:1944-05-02
申请号:US27665939
申请日:1939-05-31
Applicant: IBM
Inventor: LUHN HANS P
IPC: G06M3/02
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公开(公告)号:CA528220A
公开(公告)日:1956-07-24
申请号:CA528220D
Applicant: IBM
Inventor: JOHNSON RICHARD L , LUHN HANS P
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公开(公告)号:US3293619A
公开(公告)日:1966-12-20
申请号:US33307663
申请日:1963-12-24
Applicant: IBM
Inventor: LUHN HANS P
IPC: G06K17/00
CPC classification number: G06K17/00 , Y10S707/99936
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