3838648

Information

• Patent Grant
• 3838648

• References
• Source

• Patent Number

  3,838,648

• Date Filed

  Not available

• Date Issued

  Tuesday, October 1, 1974
  50 years ago

• CPC

  • E01B25/12 - Switches Crossings
  • B61B5/025 - Sub-floor conveyor systems

• US Classifications

  • 104 - Railways
  • 191 - Electricity: transmission to vehicles