2783731

Information

• Patent Grant
• 2783731

• References
• Source

• Patent Number

  2,783,731

• Date Filed

  Not available

• Date Issued

  Tuesday, March 5, 1957
  67 years ago

• CPC

  • B63B22/10 - Water soluble or water weakened means

• US Classifications

  • 116 - Signals and indicators
  • 441 - Buoys, rafts, and aquatic devices