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公开(公告)号：US1420873A
公开(公告)日：1922-06-27
申请号：US46820721
申请日：1921-05-10
Applicant: AMERICAN PULLEY CO
Inventor： SHARPLESS JR JOHN F
IPC: E05D13/00
CPC classification number: E05D13/14 , E05Y2201/668 , E05Y2900/148 , Y10T16/767
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