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公开(公告)号:US2692491A
公开(公告)日:1954-10-26
申请号:US25858951
申请日:1951-11-28
Applicant: DIAMOND MATCH CO
Inventor: GEORGE HEPBURN WILLIAM
IPC: F23Q2/02
CPC classification number: F23Q2/02
公开(公告)号:US2692491A
公开(公告)日:1954-10-26
申请号:US25858951
申请日:1951-11-28
Applicant: DIAMOND MATCH CO
Inventor: GEORGE HEPBURN WILLIAM
IPC: F23Q2/02
CPC classification number: F23Q2/02