2175221

Information

• Patent Grant
• 2175221

• References
• Source

• Patent Number

  2,175,221

• Date Filed

  Not available

• Date Issued

  Tuesday, October 10, 1939
  85 years ago

• CPC

  • C09K5/16 - Materials undergoing chemical reactions when used
  • A45D7/065 - using wrappers with chemical heat reaction

• US Classifications

  • 132 - Toilet