3378683

Information

• Patent Grant
• 3378683

• References
• Source

• Patent Number

  3,378,683

• Date Filed

  Not available

• Date Issued

  Tuesday, April 16, 1968
  56 years ago

• CPC

  • E01B7/12 - Fixed frogs made of one part or composite

• US Classifications

  • 246 - Railway switches and signals
  • 238 - Railways: surface track