1944989

Information

• Patent Grant
• 1944989

• References
• Source

• Patent Number

  1,944,989

• Date Filed

  Not available

• Date Issued

  Tuesday, January 30, 1934
  90 years ago

• CPC

  • B28B1/082 - combined with a vacuum

• US Classifications

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