2642489

Information

• Patent Grant
• 2642489

• References
• Source

• Patent Number

  2,642,489

• Date Filed

  Not available

• Date Issued

  Tuesday, June 16, 1953
  71 years ago

• CPC

  • B60Q1/36 - using movable members

• US Classifications

  • 340 - Communications: electrical
  • 116 - Signals and indicators