A - Human Necessities – 63 – B
Patent
A - Human Necessities
63
B
77/10, 273/168
A63B 37/10 (2006.01) A63B 43/04 (2006.01)
Patent
CA 1064984
ABSTRACT Top weight and/or total weight are adjusted by drilling a hole into the ball along a diameter passing through the center of the top weight area and the center of gravity of total ball weight. Weighted plugs are then located at the two centers by an intervening spacer, and the hole closed by a closure cap.
244672
Caplan David M.
LandOfFree
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