3690141

Information

• Patent Grant
• 3690141

• References
• Source

• Patent Number

  3,690,141

• Date Filed

  Not available

• Date Issued

  Tuesday, September 12, 1972
  52 years ago

• CPC

  • B21D51/36 - collapsible or like thin-walled tubes
  • B65B9/14 - Devices for distending tubes supplied in the flattened state

• US Classifications

  • 072 - Metal deforming