In the collar scraper for cleaning pipelines, having a scraper body which bears the collars, the scraper body is in the form of a cylinder, the end faces of which are each provided with a fissure in which the collar is arranged and held by means of a securing device fastened on the end face.
申请公布号
DE3818246(A1)
申请公布日期
1989.12.07
申请号
DE19883818246
申请日期
1988.05.28
申请人
HOECHST AG, 6230 FRANKFURT, DE
发明人
FUHLENDORF, ROLF, 2000 HAMBURG, DE;SCHROEDER, PETER, 2050 HAMBURG, DE
