发明名称 Exerciser for softball pitchers
摘要 <p>An exerciser for softball pitchers who are especially strengthening the muscles in the shoulder and arm of the user. The exerciser has a base which may be attached to a fixed frame member. A rotatable arm is held by the base, and a brake pad and shoe assembly is affixed between the rotatable arm and the base. The amount of pressure between the brake pads and the brake shoe is adjustable. A curved arm is held by the arm-support member, and a flexible line is attached at its remote end. The flexible line is about one-half the length of the curved arm. The curved arm may be rotated 360 DEG around the base.</p>
申请公布号 AU4598293(A) 申请公布日期 1994.01.04
申请号 AU19930045982 申请日期 1993.06.02
申请人 DOUGLAS W. FINCH 发明人 NAME NOT GIVEN
分类号 A63B21/00;A63B21/015;A63B69/00 主分类号 A63B21/00
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