1998598

Information

• Patent Grant
• 1998598

• References
• Source

• Patent Number

  1,998,598

• Date Filed

  Not available

• Date Issued

  Tuesday, April 23, 1935
  89 years ago

• CPC

  • F23Q7/20 - with built-in mains transformer

• US Classifications

  • 219 - Electric heating
  • 310 - Electrical generator or motor structure