2739772

Information

• Patent Grant
• 2739772

• References
• Source

• Patent Number

  2,739,772

• Date Filed

  Not available

• Date Issued

  Tuesday, March 27, 1956
  68 years ago

• CPC

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

• US Classifications

  • 246 - Railway switches and signals