3852890

Information

• Patent Grant
• 3852890

• References
• Source

• Patent Number

  3,852,890

• Date Filed

  Not available

• Date Issued

  Tuesday, December 10, 1974
  50 years ago

• CPC

  • G01R17/04 - in which the reference value is continuously or periodically swept over the range of values to be measured
  • G01C9/06 - Electric or photoelectric indication or reading means

• US Classifications

  • 033 - Geometrical instruments