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公开(公告)号:US3546691A
公开(公告)日:1970-12-08
申请号:US3546691D
申请日:1967-10-31
Applicant: ACF IND INC
Inventor: SMITH RUSSELL FREDERICK
公开(公告)号:US3546691A
公开(公告)日:1970-12-08
申请号:US3546691D
申请日:1967-10-31
Applicant: ACF IND INC
Inventor: SMITH RUSSELL FREDERICK