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206677
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Information
Patent Grant
206677
References
Source
Patent Number
206,677
Date Filed
Not available
Date Issued
Tuesday, August 6, 1878
146 years ago
CPC
E05B43/00 - Time locks
Y10S70/45 - Time lock and auxiliary lock operable on failure of time lock
Y10T70/704 - Continuously operating once initiated
US Classifications
070 - Locks
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