Patent 6855066 was granted and assigned to Acushnet Company on February, 2005 by the United States Patent and Trademark Office.
A set of golf club irons with improved vibration damping and weight distribution, each golf club comprising a shaft and a head comprising a body portion having a front portion and a back portion, wherein the body portion defines an upper aperture and a lower aperture extending through the body portion communicating with the front portion and the back portion.