1651420

Information

• Patent Grant
• 1651420

• References
• Source

• Patent Number

  1,651,420

• Date Filed

  Not available

• Date Issued

  Tuesday, December 6, 1927
  97 years ago

• CPC

  • B28B7/0061 - Moulds, cores or mandrels specially adapted for mechanically working moulding surfaces during moulding or demoulding
  • Y10S425/111 - Hollow block

• US Classifications

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