Bicycle wheel rim with a wear-indicating projection

Brake adjustment indicator

Brake wear indicator

Brake wear indicator

Brush filaments

Chain elongation indicator and method

Color change nipple

Composite tool having wear indicator

Device for indicating brake wear

Flange valve having improved sealing characteristics and wear in

Gear wear indicator

In-situ wear indicator for non-selective material removal...

Method of grinding thin-film magnetic heads using optical grindi

Plasma processing apparatus and components thereof, and...

Process kit parts and method for using same

Refractory gas permeable bubbling plug

Slack adjustment tester

Tire with worn tread indicator

Visual brake rod position indicator

Walking aid and a wear indicating foot therefore