3480072

Information

• Patent Grant
• 3480072

• References
• Source

• Patent Number

  3,480,072

• Date Filed

  Not available

• Date Issued

  Tuesday, November 25, 1969
  55 years ago

• CPC

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

• US Classifications

  • 164 - Metal founding
  • 246 - Railway switches and signals