1677498

Information

• Patent Grant
• 1677498

• References
• Source

• Patent Number

  1,677,498

• Date Filed

  Not available

• Date Issued

  Tuesday, July 17, 1928
  96 years ago

• CPC

  • B28B7/303 - specially for making undercut recesses or continuous cavities the inner section of which is superior to the section of either of the mouths
  • Y10S264/54 - Processes in making insulators

• US Classifications

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