3517638

Information

• Patent Grant
• 3517638

• References
• Source

• Patent Number

  3,517,638

• Date Filed

  Not available

• Date Issued

  Tuesday, June 30, 1970
  54 years ago

• CPC

  • H01H9/165 - comprising numbered dials
  • H03J1/02 - Indicating arrangements

• US Classifications

  • 116 - Signals and indicators