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公开(公告)号：US997813A
公开(公告)日：1911-07-11
申请号：US1910582867
申请日：1910-09-20
Applicant: HENGEL FREDERICK , ADDIS JACOB
Inventor： HENGEL FREDERICK , ADDIS JACOB
CPC classification number: A47G9/10
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公开(公告)号：US969620A
公开(公告)日：1910-09-06
申请号：US1910549651
申请日：1910-03-16
Applicant: HENGEL FREDERICK , ADDIS JACOB
Inventor： HENGEL FREDERICK , ADDIS JACOB
CPC classification number: A47B49/002 , Y10S312/902
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