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3427521
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Information
Patent Grant
3427521
References
Source
Patent Number
3,427,521
Date Filed
Not available
Date Issued
Tuesday, February 11, 1969
55 years ago
CPC
E05F15/77 - using wireless control
E05F15/676 - operated by friction wheels
E05Y2201/434 - Electromotors Details thereof
E05Y2600/46 - in or on the wing
E05Y2900/106 - for garages
US Classifications
318 - Electricity: motive power systems
049 - Movable or removable closures
361 - Electricity: electrical systems and devices
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