1964681

Information

• Patent Grant
• 1964681

• References
• Source

• Patent Number

  1,964,681

• Date Filed

  Not available

• Date Issued

  Tuesday, June 26, 1934
  90 years ago

• CPC

  • B29C47/688 - surrounding a rotating screw
  • B29B9/065 - under-water
  • B29C47/84 - Heating or cooling the screws
  • B29C47/845 - cooling
  • B29C47/0023 - Hollow rigid articles having only one tubular passage

• US Classifications

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