Walking aid and a wear indicating foot therefore
Warning stay-guard
Warning tape for underground lines
Watch pointers with means for setting therein variable-size diam
Water filter gauge for coffee brewer
Water gauge and method of use therefor
Water in oil detection plug
Water skier warning flag system
Water-pressure sensitive dye release apparatus
Watering indicator for hanging plants
Way-guidance marker
Wear indicator for rotary drilling tools
Wear indicator for vehicle air brakes
Wear-through detector for multilayered parts and methods of usin
Web marking device
Web marking device
Wetness indicating composition
Wetness indicator having improved colorant retention
Wetness indicator having improved colorant retention and...
Wetness indicator having improved colorant retention and...