1678594

Information

• Patent Grant
• 1678594

• References
• Source

• Patent Number

  1,678,594

• Date Filed

  Not available

• Date Issued

  Tuesday, July 24, 1928
  96 years ago

• CPC

  • B21K21/10 - cone-shaped or bell-shaped articles
  • Y10T29/49227 - Insulator making

• US Classifications

  • 029 - Metal working