Inventor

HEPPNER MARTIN

DE2 patents

Patents

2 patents

US5035781AJul 30, 1991

Electrolyte for the production of black surface layers on light metals

JENOPTIK JENA GMBH6 citations68

US5075178ADec 24, 1991

Black surface layer on light metal

JENOPTIK JENA GMBH1 citations46