CH613460A5CH423675ACH423675ACH613460A5CH 613460 A5CH613460 A5CH 613460A5CH 423675 ACH423675 ACH 423675ACH 423675 ACH423675 ACH 423675ACH 613460 A5CH613460 A5CH 613460A5
Authority
CH
Switzerland
Application number
CH423675A
Inventor
Otto Dr Isaac
Klaus Dr Posselt
Horst Dr Uthemann
Original Assignee
Degussa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by DegussafiledCriticalDegussa
Publication of CH613460A5publicationCriticalpatent/CH613460A5/xx