2991590

Information

• Patent Grant
• 2991590

• References
• Source

• Patent Number

  2,991,590

• Date Filed

  Not available

• Date Issued

  Tuesday, July 11, 1961
  63 years ago

• CPC

  • C03B15/08 - by means of bars below the surface of the melt

• US Classifications

  • 065 - Glass manufacturing