Swingable practice club with magnetically retained slidable sounding device
United States Patent 3113782
US Patent References:
/0514420.html
- - 0514420

Practice golf club
- - 2135648

Exercise club
- - 2396408

Golf club
- - 2592013

Instructional device for use in connection with ball games
- - 2772887


Inventors:
William, Guier
Publication Date:
12/10/1963
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Assignee:
William, Guier
Primary Class:
473/234
Other Classes:
446/419, 446/129, 473/457
International Classes:
A63B15/00
US Patent References:
2823037Vibratory impulse generator for golf club
2843076Force measuring device
2963562Magnetic g load actuated switch
3033575Practice golf club
3044781Practice golf club construction