1494721

Information

• Patent Grant
• 1494721

• References
• Source

• Patent Number

  1,494,721

• Date Filed

  Not available

• Date Issued

  Tuesday, May 20, 1924
  100 years ago

• CPC

  • C10H1/08 - Other means for controlling the water feed
  • F21L23/00 - Non-electric hand-lamps for miners

• US Classifications

  • 048 - Gas: heating and illuminating