3690629

Information

• Patent Grant
• 3690629

• References
• Source

• Patent Number

  3,690,629

• Date Filed

  Not available

• Date Issued

  Tuesday, September 12, 1972
  52 years ago

• CPC

  • D06F33/10 - substantially pneumatically
  • D06F37/42 - Safety arrangements

• US Classifications

  • 060 - Power plants
  • 034 - Drying and gas or vapor contact with solids
  • 091 - Motors: expansible chamber type
  • 432 - Heating