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3256823
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Information
Patent Grant
3256823
References
Source
Patent Number
3,256,823
Date Filed
Not available
Date Issued
Tuesday, June 21, 1966
58 years ago
CPC
F04B49/20 - by changing the driving speed
E03B5/02 - arranged in buildings
F25B49/025 - Motor control arrangements
US Classifications
417 - Pumps
310 - Electrical generator or motor structure
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