Birch, Stewart, Kolasch & Birch, LLP
Golf club head
A golf club head comprises a head main body made of a metal material and having a club face for striking a ball, and a vibration absorber made of a viscoelastic material and attached to the head main body. The vibration absorber is provided with a cut having a width of not more than 1.0 mm. Preferably, the cut is substantially parallel with the club face, and the surface at which the cut is opened, comes into contact with the head main body.
SRI Sports Limited
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Takashi
Nakano