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公开(公告)号：US656407A
公开(公告)日：1900-08-21
申请号：US1900018825
申请日：1900-06-02
Applicant: MORLEY BUTTON MFG COMPANY
Inventor： HORTON CHARLES M
CPC classification number: A44B1/42 , Y10S24/902 , Y10T24/3615 , Y10T24/4696
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