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公开(公告)号:US2239132A
公开(公告)日:1941-04-22
申请号:US28327439
申请日:1939-07-07
Applicant: CONRAD WARE
Inventor: CONRAD WARE
IPC: A01J11/06
公开(公告)号:US2239132A
公开(公告)日:1941-04-22
申请号:US28327439
申请日:1939-07-07
Applicant: CONRAD WARE
Inventor: CONRAD WARE
IPC: A01J11/06