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 - Lifetime
Application number
CA75000F
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.)
Wu Chang Chung
Original Assignee
Wu Chang Chung
Publication date
Priority to CA75000FpriorityCriticalpatent/CA75000S/en
Application grantedgrantedCritical
Publication of CA75000SpublicationCriticalpatent/CA75000S/en