With Particular "error-detecting" Means Patents (Class 318/638)
- Magnetic transducers (Class 318/653)
- Synchro control transmitter-transformer systems (Class 318/654)
- Differential transformer systems (Class 318/656)
- Variable capacitor systems (Class 318/662)
- Potentiometer systems including autotransformers and Wheatstone bridges (Class 318/663)
- Standing wave (Class 318/669)
- Contact resistance (Class 318/670)