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公开(公告)号:US1786500A
公开(公告)日:1930-12-30
申请号:US39960429
申请日:1929-10-14
Applicant: MCGONIGAL MARY M
Inventor: MCGONIGAL MARY M
IPC: A01J11/06
公开(公告)号:US1786500A
公开(公告)日:1930-12-30
申请号:US39960429
申请日:1929-10-14
Applicant: MCGONIGAL MARY M
Inventor: MCGONIGAL MARY M
IPC: A01J11/06