2151840

Information

• Patent Grant
• 2151840

• References
• Source

• Patent Number

  2,151,840

• Date Filed

  Not available

• Date Issued

  Tuesday, March 28, 1939
  85 years ago

• CPC

  • C03B23/213 - Joining projections or feet

• US Classifications

  • 065 - Glass manufacturing
  • 219 - Electric heating