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
Priority claimed from US07/963,318external-prioritypatent/US5454414A/en
Priority claimed from US07/977,788external-prioritypatent/US5392832A/en
Application filed by Hunter Douglas InternationalfiledCriticalHunter Douglas International
Application grantedgrantedCritical
Publication of TW227589BpublicationCriticalpatent/TW227589B/zh