3690504

Information

• Patent Grant
• 3690504

• References
• Source

• Patent Number

  3,690,504

• Date Filed

  Not available

• Date Issued

  Tuesday, September 12, 1972
  52 years ago

• CPC

  • B21D51/34 - by pressing
  • B65D7/34 - with permanent connections between walls

• US Classifications

  • 220 - Receptacles