2670499

Information

• Patent Grant
• 2670499

• References
• Source

• Patent Number

  2,670,499

• Date Filed

  Not available

• Date Issued

  Tuesday, March 2, 1954
  71 years ago

• CPC

  • B29D30/0654 - Flexible cores therefor
  • B29D2030/0658 - Venting devices for the flexible cores

• US Classifications

  • 425 - Plastic article or earthenware shaping or treating: apparatus
  • 251 - Valves and valve actuation
  • 285 - Pipe joints or couplings
  • 446 - Amusement devices: toys