2209739

Information

• Patent Grant
• 2209739

• References
• Source

• Patent Number

  2,209,739

• Date Filed

  Not available

• Date Issued

  Tuesday, July 30, 1940
  84 years ago

• CPC

  • C03B23/0496 - for expanding in a radial way

• US Classifications

  • 065 - Glass manufacturing
  • 073 - Measuring and testing
  • 264 - Plastic and nonmetallic article shaping or treating: processes