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公开(公告)号:DE1870715U
公开(公告)日:1963-04-18
申请号:DESC033135
申请日:1963-02-14
Applicant: SCHROEDER WALTER
Inventor: SCHROEDER WALTER
公开(公告)号:DE1870715U
公开(公告)日:1963-04-18
申请号:DESC033135
申请日:1963-02-14
Applicant: SCHROEDER WALTER
Inventor: SCHROEDER WALTER