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公开(公告)号：US1352846A
公开(公告)日：1920-09-14
申请号：US35483620
申请日：1920-01-29
Applicant: MICHAEL SORG
Inventor： MICHAEL SORG
IPC: E05D13/00
CPC classification number: E05D13/10 , E05Y2201/654 , E05Y2600/46 , Y10T16/675
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