3500530

Information

• Patent Grant
• 3500530

• References
• Source

• Patent Number

  3,500,530

• Date Filed

  Not available

• Date Issued

  Tuesday, March 17, 1970
  54 years ago

• CPC

  • B21D51/38 - Making inlet or outlet arrangements of cans, tins, baths, bottles, or other vessels Making can ends Making closures
  • B21D51/20 - barrels
  • Y10T29/5363 - Circular spring

• US Classifications

  • 029 - Metal working