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公开(公告)号:US2424058A
公开(公告)日:1947-07-15
申请号:US68412346
申请日:1946-07-17
Applicant: DRAPER CORP
Inventor: SANDERSON KENNETH E , ROGERS LEONARD M
IPC: D03D51/00
CPC classification number: D03D51/02 , D03D2700/26
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公开(公告)号:US2489979A
公开(公告)日:1949-11-29
申请号:US2412048
申请日:1948-04-30
Applicant: DRAPER CORP
Inventor: ROGERS LEONARD M
IPC: D03D49/38
CPC classification number: D03D49/38
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公开(公告)号:US2746489A
公开(公告)日:1956-05-22
申请号:US37426753
申请日:1953-08-14
Applicant: DRAPER CORP
Inventor: ROGERS LEONARD M
IPC: D03D49/20
CPC classification number: D03D49/20 , D03D2700/19
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公开(公告)号:US2746693A
公开(公告)日:1956-05-22
申请号:US38361153
申请日:1953-10-01
Applicant: DRAPER CORP
Inventor: ROGERS LEONARD M
IPC: B65H75/28
CPC classification number: B65H75/28
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公开(公告)号:US2489978A
公开(公告)日:1949-11-29
申请号:US72920847
申请日:1947-02-18
Applicant: DRAPER CORP
Inventor: ROGERS LEONARD M , FRANCIS DONOGHUE FLORENCE
IPC: D03D49/62
CPC classification number: D03D49/62
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公开(公告)号:US2437406A
公开(公告)日:1948-03-09
申请号:US71987447
申请日:1947-01-02
Applicant: DRAPER CORP
Inventor: ROGERS LEONARD M
IPC: D03D51/20
CPC classification number: D03D51/20 , D03D2700/30
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公开(公告)号:US2083276A
公开(公告)日:1937-06-08
申请号:US12025737
申请日:1937-01-12
Applicant: DRAPER CORP
Inventor: ROGERS LEONARD M
IPC: D03D49/38
CPC classification number: D03D49/38
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公开(公告)号:US2722240A
公开(公告)日:1955-11-01
申请号:US45883254
申请日:1954-09-28
Applicant: DRAPER CORP
Inventor: BUDZYNA WALTER J , ROGERS LEONARD M
IPC: D03D49/20
CPC classification number: D03D49/20 , D03D2700/19
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公开(公告)号:US2637348A
公开(公告)日:1953-05-05
申请号:US23996051
申请日:1951-08-02
Applicant: DRAPER CORP
Inventor: ROGERS LEONARD M
IPC: D03C5/02
CPC classification number: D03C5/02 , D03C2700/0105
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公开(公告)号:US2191413A
公开(公告)日:1940-02-20
申请号:US26612539
申请日:1939-04-05
Applicant: DRAPER CORP
Inventor: ROGERS LEONARD M
IPC: D03D51/00
CPC classification number: D03D51/36 , D03D2700/26
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