1921544

Information

• Patent Grant
• 1921544

• References
• Source

• Patent Number

  1,921,544

• Date Filed

  Not available

• Date Issued

  Tuesday, August 8, 1933
  91 years ago

• CPC

  • B28B21/96 - for smoothing, roughening, corrugating or for removing burr
  • Y10S264/66 - Processes of reshaping and reforming
  • Y10S425/218 - Pipe machine: socket forming apparatus

• US Classifications

  • 425 - Plastic article or earthenware shaping or treating: apparatus
  • 264 - Plastic and nonmetallic article shaping or treating: processes