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公开(公告)号:US1873265A
公开(公告)日:1932-08-23
申请号:US52751131
申请日:1931-04-03
Applicant: BENT LAWRENCE A
Inventor: BENT LAWRENCE A
IPC: A01J11/06
CPC classification number: A01J11/06
公开(公告)号:US1873265A
公开(公告)日:1932-08-23
申请号:US52751131
申请日:1931-04-03
Applicant: BENT LAWRENCE A
Inventor: BENT LAWRENCE A
IPC: A01J11/06
CPC classification number: A01J11/06