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公开(公告)号：US875370A
公开(公告)日：1907-12-31
申请号：US1906319774
申请日：1906-06-01
Applicant: GEORGE EDWARD NORRIS , JOHN ROBERT NORRIS , ODELL WILLARD ARANZO
Inventor： ODELL WILLARD ARANZO
CPC classification number: F16N13/10
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