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公开(公告)号:US3426319A
公开(公告)日:1969-02-04
申请号:US3426319D
申请日:1967-02-13
Applicant: SQUARE D CO
Inventor: DOWNS HAROLD H , ISSA MANUEL A
公开(公告)号:US3426319A
公开(公告)日:1969-02-04
申请号:US3426319D
申请日:1967-02-13
Applicant: SQUARE D CO
Inventor: DOWNS HAROLD H , ISSA MANUEL A