2640340

Information

• Patent Grant
• 2640340

• References
• Source

• Patent Number

  2,640,340

• Date Filed

  Not available

• Date Issued

  Tuesday, June 2, 1953
  71 years ago

• CPC

  • F23Q2/06 - with friction wheel

• US Classifications

  • 431 - Combustion
  • D27 - Tobacco and smokers' supplies