Radio frequency identifiers in game tickets
Radio or television receiver with an automatic station finding a
Radio terminal
Radio-frequency identification tag
Radio-tag reading apparatus and radio tag
Radioactive dose calculating device
Radiofrequency antennae and identification tags and methods...
Radiofrequency antennae and identification tags and methods...
Radiography
Radix converter utilizing automata
Rail car identification apparatus
Railroad track survey apparatus
Railway train control simulator and method
RAM error correction using two dimensional parity checking
Ramp function generator
Random access techniques for use with self-clocking glyph codes
Random digit generator
Random number game result checking aid
Random sample statistical function analyzer
Random signal generator for the manufacture of slub open end spu