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.)
Expired
Application number
AU39036/68A
Inventor
MARSCH and THEODOR KOLK WALTER
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.)
Becgrit Grubenausbau Gm B H
Original Assignee
Becgrit Grubenausbau Gm B H
Filing date
Publication date
Application filed by Becgrit Grubenausbau Gm B HfiledCriticalBecgrit Grubenausbau Gm B H
Publication of AU3903668ApublicationCriticalpatent/AU3903668A/en