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公开(公告)号:US1012628A
公开(公告)日:1911-12-26
申请号:US1911620343
申请日:1911-04-11
Applicant: GRAY PAUL E
Inventor: GRAY PAUL E
CPC classification number: B61B10/025 , E05Y2201/434
公开(公告)号:US1012628A
公开(公告)日:1911-12-26
申请号:US1911620343
申请日:1911-04-11
Applicant: GRAY PAUL E
Inventor: GRAY PAUL E
CPC classification number: B61B10/025 , E05Y2201/434