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公开(公告)号:US1066122A
公开(公告)日:1913-07-01
申请号:US1912695482
申请日:1912-05-06
Applicant: COMMON WEALTH STEEL COMPANY , KNOX WILLIAM J
Inventor: KNOX WILLIAM J
CPC classification number: B61D17/06
公开(公告)号:US1066122A
公开(公告)日:1913-07-01
申请号:US1912695482
申请日:1912-05-06
Applicant: COMMON WEALTH STEEL COMPANY , KNOX WILLIAM J
Inventor: KNOX WILLIAM J
CPC classification number: B61D17/06