1380537

Information

• Patent Grant
• 1380537

• References
• Source

• Patent Number

  1,380,537

• Date Filed

  Not available

• Date Issued

  Tuesday, June 7, 1921
  103 years ago

• CPC

  • B29D30/0654 - Flexible cores therefor
  • B29D2030/0659 - Details or accessories for the flexible cores not otherwise provided for

• US Classifications

  • 425 - Plastic article or earthenware shaping or treating: apparatus