Fluid pressure signal converter
Food counter
Fourth wheel for three-wheel counters
Fraction abacus
Fuel pump computer conversion means
Fuel pump register with expanded readout
Game score registering device
Gauge for the calculation of the volume of logs
High pressure process for polyethylene production
High-speed parallel printer
Horizontal tabulation apparatus for accounting machines or...
Hubodometer
Index card register with selector device
Interchangeable keyboard defining means
Internal pinion revolution counter and method of assembling...
Interval timing mechanism for a maximum demand meter
Key interlocking mechanism for calculating machines
Key interlocking mechanism for calculators
Key operated portable calculating machine
Key-driven calculating machine