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公开(公告)号:US884921A
公开(公告)日:1908-04-14
申请号:US1904213430
申请日:1904-06-20
Applicant: HARDESTY JAMES CRAIG
Inventor: HARDESTY JAMES CRAIG
CPC classification number: B01F1/0022
公开(公告)号:US884921A
公开(公告)日:1908-04-14
申请号:US1904213430
申请日:1904-06-20
Applicant: HARDESTY JAMES CRAIG
Inventor: HARDESTY JAMES CRAIG
CPC classification number: B01F1/0022