CH560728A5CH1793373ACH1793373ACH560728A5CH 560728 A5CH560728 A5CH 560728A5CH 1793373 ACH1793373 ACH 1793373ACH 1793373 ACH1793373 ACH 1793373ACH 560728 A5CH560728 A5CH 560728A5
Authority
CH
Switzerland
Application number
CH1793373A
Original Assignee
Charbonnages Ste Chimique
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 Charbonnages Ste ChimiquefiledCriticalCharbonnages Ste Chimique
Publication of CH560728A5publicationCriticalpatent/CH560728A5/xx