A golf putter has a hard grip or an all-metal grip, and the grip, shaft and head are formed of a single, stiff material, or materials having closely-related moduli of elasticity, into an integral structural element. It is cast, forged, bonded, or otherwise assembled, to achieve a stiff, but sensitive...http://www.google.co.uk/patents/US5322285?utm_source=gb-gplus-sharePatent US5322285 - Golf putter
