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公开(公告)号:US2839920A
公开(公告)日:1958-06-24
申请号:US55758556
申请日:1956-01-05
Applicant: GLENN L MARTIN CO
Inventor: MACANESPIE THOMAS G
IPC: G01C13/00
CPC classification number: G01C13/002
公开(公告)号:US2839920A
公开(公告)日:1958-06-24
申请号:US55758556
申请日:1956-01-05
Applicant: GLENN L MARTIN CO
Inventor: MACANESPIE THOMAS G
IPC: G01C13/00
CPC classification number: G01C13/002