Longitudinally adjustable golf club including head with high moment of inertia abouttwo axes
作者： Jr Albert J Williams
DOI:
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摘要:
lens.org 参考文章(3)
Ernest F Soucy, Adjustable telescoping tubular structure ,(1951)
Jr Gustav A Beeaff, Practice swing golf club attachment ,(1951)
Arthur D Benham, Clamping device for street-signs. ,(1902)