1372187

Information

• Patent Grant
• 1372187

• References
• Source

• Patent Number

  1,372,187

• Date Filed

  Not available

• Date Issued

  Tuesday, March 22, 1921
  103 years ago

• CPC

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

• US Classifications

  • 200 - Electricity: circuit makers and breakers
  • 340 - Communications: electrical