3306838

Information

• Patent Grant
• 3306838

• References
• Source

• Patent Number

  3,306,838

• Date Filed

  Not available

• Date Issued

  Tuesday, February 28, 1967
  57 years ago

• CPC

  • B23H9/006 - Cavity sinking

• US Classifications

  • 204 - Chemistry: electrical and wave energy
  • 141 - Fluent material handling, with receiver or receiver coacting means
  • 219 - Electric heating
  • 239 - Fluid sprinkling, spraying, and diffusing