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US08944962B2 Gymnastic tool, apparatus and method to carry out it 有权
体操工具,仪器和方法进行

Gymnastic tool, apparatus and method to carry out it
Abstract:
A gymnastic tool (1) is formed by at least two impermeable external walls (2, 3) which are each concave shaped and provided with respective edges (4,5). The at least two impermeable walls (2, 3) are mutually fixed together by a connector (6), the gymnastic tool having at least one inner cavity.
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