2999448

Information

• Patent Grant
• 2999448

• References
• Source

• Patent Number

  2,999,448

• Date Filed

  Not available

• Date Issued

  Tuesday, September 12, 1961
  64 years ago

• CPC

  • B25H1/20 - with provision for shielding the work area
  • F24F3/1607 - Clean air work stations
  • G04D1/0014 - Workbenches, supports; Workbenches provided with suction devices; for dust; Illumination
  • Y10S55/29 - Air curtains

• US Classifications

  • 454 - Ventilation
  • 055 - Gas separation
  • 968 - Horology