Warning tape for underground lines
Warning triangle
Warning triangle assembly
Wasp repellent device
Watch pointers with means for setting therein variable-size diam
Water collection indicator device
Water filter gauge for coffee brewer
Water gauge and method of use therefor
Water in oil detection plug
Water ski locating device
Water ski safety flag
Water skier warning flag system
Water-pressure sensitive dye release apparatus
Water-wheel bathtub float alarm
Watering indicator for hanging plants
Way-guidance marker
Wear indicator for a brake shoe, especially a disc-type brake sh
Wear indicator for rotary drilling tools
Wear indicator for vehicle air brakes
Wear-through detector for multilayered parts and methods of usin