509987

Information

• Patent Grant
• 509987

• References
• Source

• Patent Number

  509,987

• Date Filed

  Not available

• Date Issued

  Tuesday, December 5, 1893
  131 years ago

• CPC

  • B01F7/247 - with additional mixing elements other than helices; having inner and outer helices; with helices surrounding a guiding tube
  • Y10S425/11 - Heated mold

• US Classifications

  • 366 - Agitating
  • 100 - Presses
  • 425 - Plastic article or earthenware shaping or treating: apparatus