Patent search ap:("ASEA AB") AND inv:"BERTIL STALHANE JOHAN" Page 1

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发明授权
Rotary furnace for treating pulverized ore with gas 失效
Title translation: 用气体处理粉矿的旋转炉

公开(公告)号：US1959772A

公开(公告)日：1934-05-22

申请号：US63441832

申请日：1932-09-22

Applicant: ASEA AB

Inventor： OTTO STALHANE , BERTIL STALHANE JOHAN

IPC: F27B7/00 , F27B7/16

CPC classification number: F27B7/00 , F27B7/16

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