TREA

Spiral springs with turns lying substantially in plane surfaces

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Industry

  • CPC
  • A63B21/025
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Parent Industries

AHUMAN NECESSITIES A63Sports, games A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING BALL GAMES TRAINING EQUIPMENT A63B21/00Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices

Current Industry

A63B21/025Spiral springs with turns lying substantially in plane surfaces
Industries