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公开(公告)号:US3525416A
公开(公告)日:1970-08-25
申请号:US3525416D
申请日:1969-03-10
Applicant: MANDREL INDUSTRIES
Inventor: MOTT-SMITH LEWIS MORTON
公开(公告)号:US3525416A
公开(公告)日:1970-08-25
申请号:US3525416D
申请日:1969-03-10
Applicant: MANDREL INDUSTRIES
Inventor: MOTT-SMITH LEWIS MORTON