2493548

Information

• Patent Grant
• 2493548

• References
• Source

• Patent Number

  2,493,548

• Date Filed

  Not available

• Date Issued

  Tuesday, January 3, 1950
  75 years ago

• CPC

  • F22B37/426 - Feed-water supply alarm devices using electric signals

• US Classifications

  • 340 - Communications: electrical
  • 122 - Liquid heaters and vaporizers