2557254

Information

• Patent Grant
• 2557254

• References
• Source

• Patent Number

  2,557,254

• Date Filed

  Not available

• Date Issued

  Tuesday, June 19, 1951
  73 years ago

• CPC

  • B61L5/203 - Detonators; Track mounting means; Composition of the detonative product

• US Classifications

  • 246 - Railway switches and signals
  • 102 - Ammunition and explosives
  • 116 - Signals and indicators