3638594

Information

• Patent Grant
• 3638594

• References
• Source

• Patent Number

  3,638,594

• Date Filed

  Not available

• Date Issued

  Tuesday, February 1, 1972
  53 years ago

• CPC

  • D05B71/04 - Needle cooling devices

• US Classifications

  • 112 - Sewing
  • 165 - Heat exchange
  • 415 - Rotary kinetic fluid motors or pumps
  • 416 - Fluid reaction surfaces
  • 417 - Pumps