2631645

Information

• Patent Grant
• 2631645

• References
• Source

• Patent Number

  2,631,645

• Date Filed

  Not available

• Date Issued

  Tuesday, March 17, 1953
  71 years ago

• CPC

  • B21D15/06 - annularly
  • B31F1/205 - Corrugating tubes
  • Y10T29/4938 - Common fin traverses plurality of tubes

• US Classifications

  • 264 - Plastic and nonmetallic article shaping or treating: processes
  • 029 - Metal working
  • 072 - Metal deforming
  • 138 - Pipes and tubular conduits
  • 425 - Plastic article or earthenware shaping or treating: apparatus
  • 493 - Manufacturing container or tube from paper