1978609

Information

• Patent Grant
• 1978609

• References
• Source

• Patent Number

  1,978,609

• Date Filed

  Not available

• Date Issued

  Tuesday, October 30, 1934
  90 years ago

• CPC

  • F22B37/221 - Covers for drums, collectors, manholes or the like

• US Classifications

  • 285 - Pipe joints or couplings