1643642

Information

• Patent Grant
• 1643642

• References
• Source

• Patent Number

  1,643,642

• Date Filed

  Not available

• Date Issued

  Tuesday, September 27, 1927
  97 years ago

• CPC

  • B66C7/14 - Runway interlocking devices

• US Classifications

  • 104 - Railways
  • 212 - Traversing hoists