1804441

Information

• Patent Grant
• 1804441

• References
• Source

• Patent Number

  1,804,441

• Date Filed

  Not available

• Date Issued

  Tuesday, May 12, 1931
  93 years ago

• CPC

  • A61H1/0218 - Drawing-out devices
  • A63B21/06 - User-manipulated weights
  • A63B21/0609 - consisting of loosely interconnected elements for progressively changing weight
  • A63B21/154 - using special pulley-assemblies
  • A63B23/03533 - With separate means driven by each limb
  • A61H2203/0493 - by hanging the patient upside down or inclined downwardly
  • Y10S482/907 - Stretching

• US Classifications

  • 606 - Surgery
  • 482 - Exercise devices