2990648

Information

• Patent Grant
• 2990648

• References
• Source

• Patent Number

  2,990,648

• Date Filed

  Not available

• Date Issued

  Tuesday, July 4, 1961
  63 years ago

• CPC

  • C03B23/097 - by blowing
  • Y10S65/09 - Tube

• US Classifications

  • 065 - Glass manufacturing
  • 251 - Valves and valve actuation
  • 285 - Pipe joints or couplings