1514980

Information

• Patent Grant
• 1514980

• References
• Source

• Patent Number

  1,514,980

• Date Filed

  Not available

• Date Issued

  Tuesday, November 11, 1924
  100 years ago

• CPC

  • B28B21/22 - using rotatable mould or core parts
  • B28B7/18 - the holes passing completely through the article
  • B28B7/28 - Cores Mandrels

• US Classifications

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