Structure of spark plug ensuring stability in location of...
Surface gap igniter
Surface gap type igniter plug
Surface-gap spark plug for internal combustion engines
Three electrode arc plasma flame ignition devices
Three-dimensional multiple series gap spark plug
Top and side firing spark plug
Top and side firing spark plug
Torch jet spark plug electrode
Torque socket for an oxygen sensor or a modified spark plug
Two-piece swaged center electrode assembly
Uniquely designed internal combustion engine spark plug that...
Variable gap spark plug