2438490

Information

• Patent Grant
• 2438490

• References
• Source

• Patent Number

  2,438,490

• Date Filed

  Not available

• Date Issued

  Tuesday, March 30, 1948
  77 years ago

• CPC

  • B23K11/251 - using analog means
  • Y10T307/872 - Repetitive make and break

• US Classifications

  • 219 - Electric heating
  • 307 - Electrical transmission or interconnection systems