Keil & Witherspoon
Manufacture of electrodes
 Manufacture of electrodes consisting of bases of valve metals with electrochemically active coatings applied thereto. The electrodes are pre-treated before the said coatings are applied, the pre-treatment comprising treating the base with hydrogen. 
BASF Aktiengesellschaft
C C
C25B C25B
inventional inventional
Volker Gerd Hugo Hermann Wolfram Gotthard
Kiener Wunsch Boehn Meyer Treptow Csizi