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2420360
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Information
Patent Grant
2420360
References
Source
Patent Number
2,420,360
Date Filed
Not available
Date Issued
Tuesday, May 13, 1947
77 years ago
CPC
G05D13/08 - without auxiliary power
F03G1/00 - Spring-motor
F03G2730/03 - Spring motors with torsion springs
US Classifications
048 - Gas: heating and illuminating
188 - Brakes
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