Patent search ap:("NAT RES DEV") AND inv:"ROGERS KENNETH FRANCIS" Page 1

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发明授权
Heat insulating lining for electric furnaces 失效
Title translation: 电炉用绝热衬里

公开(公告)号：US3491192A

公开(公告)日：1970-01-20

申请号：US3491192D

申请日：1968-05-24

Applicant: NAT RES DEV

Inventor： BISHOP PETER HAROLD HOWARD , ROGERS KENNETH FRANCIS

IPC: D01F9/32 , F27B3/12 , F27D11/02 , H05B3/62

CPC classification number: F27D11/02 , D01F9/324 , F27B3/12

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