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公开(公告)号:DE1102442B
公开(公告)日:1961-03-16
申请号:DESC018144
申请日:1955-06-14
Applicant: BERTHOLD SCHUMACHER DIPL PHYS
Inventor: DIPL-PHYS DR RER NAT BERTHOLD , GRUEN DIPL-PHYS DR ARNOLD E
IPC: G01M9/06 , H01J41/02