2686649

Information

• Patent Grant
• 2686649

• References
• Source

• Patent Number

  2,686,649

• Date Filed

  Not available

• Date Issued

  Tuesday, August 17, 1954
  70 years ago

• CPC

  • E21D15/155 - Built-in cleaning devices
  • E04G25/06 - with parts held together by positive means
  • E21D15/24 - with axial screw-and-nut, rack-and-worm, or like mechanism
  • F16B37/00 - Nuts or like thread-engaging members

• US Classifications

  • 254 - Implements or apparatus for applying pushing or pulling force
  • 248 - Supports