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公开(公告)号:US1712579A
公开(公告)日:1929-05-14
申请号:US17399027
申请日:1927-03-09
Applicant: ARTHUR NICHOLS
Inventor: REES NICHOLS
IPC: A47L1/05
CPC classification number: A47L1/05
公开(公告)号:US1712579A
公开(公告)日:1929-05-14
申请号:US17399027
申请日:1927-03-09
Applicant: ARTHUR NICHOLS
Inventor: REES NICHOLS
IPC: A47L1/05
CPC classification number: A47L1/05