Patent search ap:("HOECHST AG") AND inv:"HELMUT SCHAEFER" Page 1

1.

发明授权
Method for producing adherent coatings on iron and steel parts 失效
Title translation: 钢铁部件粘附涂层的制造方法

公开(公告)号：US3202551A

公开(公告)日：1965-08-24

申请号：US22219562

申请日：1962-09-07

Applicant: HOECHST AG

Inventor： HEINZ GERISCHER , WILLY HERBST , HEINZ LUDWIG , HELMUT SCHAEFER , ERNST WAGNER

IPC: C23C22/78 , C23C22/83

CPC classification number: C23C22/83 , C23C22/78

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