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公开(公告)号:US1927244A
公开(公告)日:1933-09-19
申请号:US26521928
申请日:1928-03-27
Applicant: STANDARD IG CO
Inventor: MATHIAS PIER , KARL WINKLER , WILHELM MICHAEL
公开(公告)号:US1927244A
公开(公告)日:1933-09-19
申请号:US26521928
申请日:1928-03-27
Applicant: STANDARD IG CO
Inventor: MATHIAS PIER , KARL WINKLER , WILHELM MICHAEL