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公开(公告)号:US2101785A
公开(公告)日:1937-12-07
申请号:US7945936
申请日:1936-05-13
Applicant: PINTSCH JULIUS AG
Inventor: ERNST WILCKENS
公开(公告)号:US2101785A
公开(公告)日:1937-12-07
申请号:US7945936
申请日:1936-05-13
Applicant: PINTSCH JULIUS AG
Inventor: ERNST WILCKENS