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公开(公告)号:US1144901A
公开(公告)日:1915-06-29
申请号:US2340515
申请日:1915-04-23
Applicant: HAHN FRANK M
Inventor: HAHN FRANK M
CPC classification number: E05Y2201/684
公开(公告)号:US1144901A
公开(公告)日:1915-06-29
申请号:US2340515
申请日:1915-04-23
Applicant: HAHN FRANK M
Inventor: HAHN FRANK M
CPC classification number: E05Y2201/684