1675638

Information

• Patent Grant
• 1675638

• References
• Source

• Patent Number

  1,675,638

• Date Filed

  Not available

• Date Issued

  Tuesday, July 3, 1928
  96 years ago

• CPC

  • F23N5/08 - using light-sensitive elements
  • F23N5/087 - using mechanical means

• US Classifications

  • 431 - Combustion