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2133133
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Information
Patent Grant
2133133
References
Source
Patent Number
2,133,133
Date Filed
Not available
Date Issued
Tuesday, October 11, 1938
85 years ago
CPC
G01P3/06 - using a friction gear
G01P11/02 - Measuring average speed of number of bodies
US Classifications
235 - Registers
310 - Electrical generator or motor structure
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