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公开(公告)号:US2806402A
公开(公告)日:1957-09-17
申请号:US45990654
申请日:1954-10-04
Applicant: GEN MOTORS CORP
Inventor: FERRIS DONALD K
IPC: B64C11/30
CPC classification number: B64C11/301
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公开(公告)号:US2428068A
公开(公告)日:1947-09-30
申请号:US48000543
申请日:1943-03-22
Applicant: GEN MOTORS CORP
Inventor: FERRIS DONALD K
IPC: C21D1/64
CPC classification number: C21D1/64
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公开(公告)号:US2343543A
公开(公告)日:1944-03-07
申请号:US28711939
申请日:1939-07-28
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:US2309179A
公开(公告)日:1943-01-26
申请号:US34319940
申请日:1940-06-29
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:US2606436A
公开(公告)日:1952-08-12
申请号:US54216944
申请日:1944-06-26
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:US2478814A
公开(公告)日:1949-08-09
申请号:US40836141
申请日:1941-08-26
Applicant: GEN MOTORS CORP
Inventor: FERRIS DONALD K
CPC classification number: A47L15/4259 , A47L15/06 , A47L15/4297
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公开(公告)号:US2407922A
公开(公告)日:1946-09-17
申请号:US48884043
申请日:1943-05-28
Applicant: GEN MOTORS CORP
Inventor: FERRIS DONALD K
IPC: D06F45/18
CPC classification number: D06F45/18
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公开(公告)号:US2406494A
公开(公告)日:1946-08-27
申请号:US48693243
申请日:1943-05-14
Applicant: GEN MOTORS CORP
Inventor: FERRIS DONALD K
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公开(公告)号:US2390577A
公开(公告)日:1945-12-11
申请号:US45322442
申请日:1942-08-01
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:US2637190A
公开(公告)日:1953-05-05
申请号:US23548
申请日:1948-01-02
Applicant: GEN MOTORS CORP
Inventor: FERRIS DONALD K
IPC: D06F13/04
CPC classification number: D06F13/04
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