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Patents for Curtis Co. | |||||
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Number | Title | Classification(s) | |||
566,967 | Elastic Fluid Turbine | 415/149.1, 415/151, 415/199.5, 415/202 | |||
589,422 | Elastic Fluid Turbine | 415/151, 415/191, 415/202 | |||
591,822 | Elastic Fluid Turbine | 415/199.5, 415/202 | |||
2,644,240 | Easy Reading Micrometer Caliper | 33/819 |