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
CA793673A
Inventor
P. Hopfeld Fred
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.)
GRAND SPECIALTIES CO
Original Assignee
GRAND SPECIALTIES CO
Publication date
Application grantedgrantedCritical
Publication of CA793673ApublicationCriticalpatent/CA793673A/en