3004213

Information

• Patent Grant
• 3004213

• References
• Source

• Patent Number

  3,004,213

• Date Filed

  Not available

• Date Issued

  Tuesday, October 10, 1961
  63 years ago

• CPC

  • G01R31/257 - Testing of beam-tubes
  • Y10T307/97 - With locking, holding or braking means

• US Classifications

  • 324 - Electricity: measuring and testing
  • 209 - Classifying, separating, and assorting solids
  • 307 - Electrical transmission or interconnection systems