1671326

Information

• Patent Grant
• 1671326

• References
• Source

• Patent Number

  1,671,326

• Date Filed

  Not available

• Date Issued

  Tuesday, May 29, 1928
  96 years ago

• CPC

  • B28B11/0845 - for smoothing
  • Y10S425/111 - Hollow block

• US Classifications

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