1640224

Information

• Patent Grant
• 1640224

• References
• Source

• Patent Number

  1,640,224

• Date Filed

  Not available

• Date Issued

  Tuesday, August 23, 1927
  97 years ago

• CPC

  • C06F3/08 - Strike-surface compositions

• US Classifications

  • 149 - Explosive and thermic compositions or charges
  • 044 - Fuel and related compositions
  • 524 - Synthetic resins or natural rubbers