Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Von Duprin IncfiledCriticalVon Duprin Inc
Priority to TW81108570ApriorityCriticalpatent/TW236656B/zh
Application grantedgrantedCritical
Publication of TW236656BpublicationCriticalpatent/TW236656B/zh