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公开(公告)号：US907833A
公开(公告)日：1908-12-29
申请号：US1908429734
申请日：1908-04-28
Applicant: CHICAGO GRAIN DOOR COMPANY
Inventor： MALLORY JAMES L
CPC classification number: E05Y2201/684
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公开(公告)号：US819151A
公开(公告)日：1906-05-01
申请号：US1905242381
申请日：1905-01-23
Applicant: CHICAGO GRAIN DOOR COMPANY
Inventor： MALLORY JAMES L
CPC classification number: E05Y2201/684
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