3815508

Information

• Patent Grant
• 3815508

• References
• Source

• Patent Number

  3,815,508

• Date Filed

  Not available

• Date Issued

  Tuesday, June 11, 1974
  50 years ago

• CPC

  • B61J3/02 - Gravity shunting humps

• US Classifications

  • 104 - Railways
  • 246 - Railway switches and signals