1418859

Information

• Patent Grant
• 1418859

• References
• Source

• Patent Number

  1,418,859

• Date Filed

  Not available

• Date Issued

  Tuesday, June 6, 1922
  102 years ago

• CPC

  • B28B21/22 - using rotatable mould or core parts
  • B28B21/18 - using expansible or retractable mould or core elements
  • B28B21/66 - Reinforcing mats
  • B28B21/82 - built-up from several parts Multiple moulds Moulds with adjustable parts

• US Classifications

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