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公开(公告)号:US2821349A
公开(公告)日:1958-01-28
申请号:US31858952
申请日:1952-11-04
Applicant: GLENN L MARTIN CO
Inventor: HARRY SOHN
IPC: G05D1/12
CPC classification number: G05D1/12
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公开(公告)号:US2795057A
公开(公告)日:1957-06-11
申请号:US28686752
申请日:1952-05-09
Applicant: GLENN L MARTIN CO
Inventor: HARRY SOHN
IPC: F41G3/26
CPC classification number: F41G3/2694
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