1915566

Information

• Patent Grant
• 1915566

• References
• Source

• Patent Number

  1,915,566

• Date Filed

  Not available

• Date Issued

  Tuesday, June 27, 1933
  91 years ago

• CPC

  • H01F7/1838 - by switching-in or -out impedance

• US Classifications

  • 361 - Electricity: electrical systems and devices
  • 209 - Classifying, separating, and assorting solids
  • 294 - Handling: hand and hoist-line implements