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公开(公告)号:US2299688A
公开(公告)日:1942-10-20
申请号:US28191339
申请日:1939-06-29
Applicant: GEN MOTORS CORP
Inventor: FERRIS DONALD K
IPC: D06F67/00
CPC classification number: D06F67/005
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公开(公告)号:US2537401A
公开(公告)日:1951-01-09
申请号:US61541545
申请日:1945-09-10
Applicant: GEN MOTORS CORP
Inventor: FERRIS DONALD K
IPC: D06F45/16
CPC classification number: D06F45/16
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公开(公告)号:US2441314A
公开(公告)日:1948-05-11
申请号:US51740344
申请日:1944-01-07
Applicant: GEN MOTORS CORP
Inventor: FERRIS DONALD K
IPC: D06F65/06
CPC classification number: D06F65/06
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公开(公告)号:US2385264A
公开(公告)日:1945-09-18
申请号:US36143940
申请日:1940-10-16
Applicant: GEN MOTORS CORP
Inventor: FERRIS DONALD K
IPC: A47L15/06
CPC classification number: A47L15/06
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公开(公告)号:US2363518A
公开(公告)日:1944-11-28
申请号:US36798940
申请日:1940-11-30
Applicant: GEN MOTORS CORP
Inventor: FERRIS DONALD K
IPC: D06F65/06
CPC classification number: D06F65/06
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公开(公告)号:US2363517A
公开(公告)日:1944-11-28
申请号:US28222839
申请日:1939-06-30
Applicant: GEN MOTORS CORP
Inventor: FERRIS DONALD K
IPC: D06F65/06
CPC classification number: D06F65/06
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公开(公告)号:US2343544A
公开(公告)日:1944-03-07
申请号:US37122740
申请日:1940-12-23
Applicant: GEN MOTORS CORP
Inventor: FERRIS DONALD K
IPC: D06F67/08
CPC classification number: D06F67/08
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公开(公告)号:US2338236A
公开(公告)日:1944-01-04
申请号:US37667441
申请日:1941-01-30
Applicant: GEN MOTORS CORP
Inventor: FERRIS DONALD K
IPC: H05B6/12
CPC classification number: H05B6/1209
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公开(公告)号:US2336727A
公开(公告)日:1943-12-14
申请号:US37191240
申请日:1940-12-27
Applicant: GEN MOTORS CORP
Inventor: FERRIS DONALD K
IPC: D06F67/08
CPC classification number: D06F67/08
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公开(公告)号:US2307833A
公开(公告)日:1943-01-12
申请号:US31891340
申请日:1940-02-14
Applicant: GEN MOTORS CORP
Inventor: FERRIS DONALD K
IPC: D06F67/08
CPC classification number: D06F67/08
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