3533229

Information

• Patent Grant
• 3533229

• References
• Source

• Patent Number

  3,533,229

• Date Filed

  Not available

• Date Issued

  Tuesday, October 13, 1970
  55 years ago

• CPC

  • G04F1/08 - by a body falling a prefixed distance in air or in a viscous material

• US Classifications

  • 368 - Horology: time measuring systems or devices
  • 073 - Measuring and testing
  • 968 - Horology