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
CA916636A
Inventor
D. Roizen Zinaida
N. Plaksin Igor
I. Karmazin Vitaly
A. Popkov Evgeny
V. Karmazin Viktor
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.)
DNEPROPETROVSKY GORNY INSTITUT
Original Assignee
DNEPROPETROVSKY GORNY INSTITUT
Publication date
Application grantedgrantedCritical
Publication of CA916636ApublicationCriticalpatent/CA916636A/en