750890

Information

• Patent Grant
• 750890

• References
• Source

• Patent Number

  750,890

• Date Filed

  Not available

• Date Issued

  Tuesday, February 2, 1904
  120 years ago

• CPC

  • F21V17/10 - characterised by specific fastening means or way of fastening
  • F21V17/04 - the fastening being onto or by the light source
  • F21V29/004 - Natural cooling
  • F21V29/83 - the elements having apertures, ducts or channels
  • Y10S29/074 - Partial immersion of cutter

• US Classifications

  • 362 - Illumination
  • 029 - Metal working
  • 236 - Automatic temperature and humidity regulation
  • 313 - Electric lamp and discharge devices