Clean hands assured
Clip friction hinge
Clip-carrying bookmarker
Clip-carrying bookmarker
Clip-on bookmark
Closure cap for a container having time-date indicators
Clothing usage indicator
Clothing wear monitoring device
Coiled bookmark
Color change nipple
Colorimetric gas dosimeter
Combination bookmark display device
Combination freeze indicators
Combination hazardous liquid and water sensor
Combination knob and dial control for cold control devices
Combination line marker and test station
Combination meter
Combination pen holder and bookmark/placesaver
Combination pill bottle cap and indicator device
Combination pill bottle cap and indicator device