ELECTRICAL APPARATUS FOR DETECTING RAILROAD TRAINS AND PROVIDING BI-DIRECTIONAL COMMUNICATIONS THROUGH RAILROAD TRACKS

DISPLAY FOR DIGITAL MICROMETER AND DISPLAY AND TRANSDUCER OF MACHINE TOOL READ OUT SYSTEM

Seed taggants in the nature of chemical microparticles used on agricultural seeds for identification purposes

computer printers, namely, ink jet printers, and print heads for computer printers

Computer software design for others