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.)
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Ching Chih Wang
Original Assignee
Ching Chih Wang
Publication date
Priority to CA80878FpriorityCriticalpatent/CA80878S/en
Application grantedgrantedCritical
Publication of CA80878SpublicationCriticalpatent/CA80878S/en