2930889

Information

• Patent Grant
• 2930889

• References
• Source

• Patent Number

  2,930,889

• Date Filed

  Not available

• Date Issued

  Tuesday, March 29, 1960
  64 years ago

• CPC

  • B61L1/165 - Electrical
  • B61L3/121 - using magnetic induction
  • B61L23/12 - partly operated by train

• US Classifications

  • 246 - Railway switches and signals
  • 335 - Electricity: magnetically operated switches, magnets, and electromagnets