3759646

Information

• Patent Grant
• 3759646

• References
• Source

• Patent Number

  3,759,646

• Date Filed

  Not available

• Date Issued

  Tuesday, September 18, 1973
  51 years ago

• CPC

  • B21D47/01 - beams or pillars
  • B21D47/04 - composite sheet metal profiles
  • B29C44/306 - Longitudinally shaping
  • B29C44/326 - Joining the preformed parts

• US Classifications

  • 425 - Plastic article or earthenware shaping or treating: apparatus
  • 264 - Plastic and nonmetallic article shaping or treating: processes