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公开(公告)号:US1218714A
公开(公告)日:1917-03-13
申请号:US1913752594
申请日:1913-03-07
Applicant: ROEBLINGS JOHN A SONS CO
Inventor: SUNDERLAND CHARLES C , GREEN RICHARD D
公开(公告)号:US1218714A
公开(公告)日:1917-03-13
申请号:US1913752594
申请日:1913-03-07
Applicant: ROEBLINGS JOHN A SONS CO
Inventor: SUNDERLAND CHARLES C , GREEN RICHARD D