3171991

Information

• Patent Grant
• 3171991

• References
• Source

• Patent Number

  3,171,991

• Date Filed

  Not available

• Date Issued

  Tuesday, March 2, 1965
  60 years ago

• CPC

  • A47C23/047 - incorporating inflatable elements
  • G04C3/101 - constructional details
  • G04C3/105 - pawl and ratched-wheel being magnetically coupled
  • G04C3/165 - comprising a mechanical regulating device influencing the electromotor

• US Classifications

  • 310 - Electrical generator or motor structure
  • 318 - Electricity: motive power systems
  • 368 - Horology: time measuring systems or devices
  • 968 - Horology