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公开(公告)号：US744288A
公开(公告)日：1903-11-17
申请号：US1902107182
申请日：1902-05-13
Applicant: JOHN GEORGE YOUNG , BROWN JAMES LLOYD
Inventor： BROWN JAMES LLOYD
CPC classification number: B65G17/126 , B02C1/04
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公开(公告)号：US657918A
公开(公告)日：1900-09-18
申请号：US1900018145
申请日：1900-05-26
Applicant: COPPING JAMES LLOYD , TREECE GEORGE DYSON
Inventor： COPPING JAMES LLOYD , TREECE GEORGE DYSON
CPC classification number: F41A17/38
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