3648139

Information

• Patent Grant
• 3648139

• References
• Source

• Patent Number

  3,648,139

• Date Filed

  Not available

• Date Issued

  Tuesday, March 7, 1972
  52 years ago

• CPC

  • G03B23/06 - with rotary movement
  • G05D3/1481 - with discrete position sensor

• US Classifications

  • 318 - Electricity: motive power systems