Diffractionated golf ball

摘要: This invention relates to a golf ball adapted improve golfer's score in that the dimples, or cavities, which are aligned on great circle of provided with diffraction discs whereby golfer is instantly warned movement his eyes and head when looking at while addressing same executing club swing. In game golf, it most important for rivet prior during swing club. Even slightest this riveted fixed gaze upon swinging can give unwanted even disasterous results. It an objective provide new novel capable improving game. another article manufacture having means thereon indicates, by color change, said ball. The art field balls quite extensive includes Australian Patent 20,780/29 U.S. Patents 2,861,810 (Veatch); 3,753,565 (Baker); 2,929,631 (Gillon) 1,795,732 (Miller).