Legal status (The legal status 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 status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZINNWERKE WILHELMSBURG GmbH
Original Assignee
ZINNWERKE WILHELMSBURG GmbH
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 ZINNWERKE WILHELMSBURG GmbHfiledCriticalZINNWERKE WILHELMSBURG GmbH
Publication of GB268278ApublicationCriticalpatent/GB268278A/en
Improvements in the treatment of complex minerals containing tin and/or copper, iron, arsenic, sulphur and the like and associated base and precious metals in combination or otherwise