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公开(公告)号：US1525448A
公开(公告)日：1925-02-10
申请号：US64464023
申请日：1923-06-11
Applicant: RAIL ANCHOR COMPANY
Inventor： HYLE JACOB A
IPC: E01B13/02
CPC classification number: E01B13/02 , E01B2201/10
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