3670683

Information

• Patent Grant
• 3670683

• References
• Source

• Patent Number

  3,670,683

• Date Filed

  Not available

• Date Issued

  Tuesday, June 20, 1972
  52 years ago

• CPC

  • B63B5/10 - with multiple-layer planking
  • B63B2005/247 - made of a composite of plastics and wood

• US Classifications

  • 114 - Ships