1818536

Information

• Patent Grant
• 1818536

• References
• Source

• Patent Number

  1,818,536

• Date Filed

  Not available

• Date Issued

  Tuesday, August 11, 1931
  93 years ago

• CPC

  • B29D30/0654 - Flexible cores therefor
  • B29D2030/0658 - Venting devices for the flexible cores
  • Y10S152/07 - Rubber valves

• US Classifications

  • 152 - Resilient tires and wheels
  • 425 - Plastic article or earthenware shaping or treating: apparatus