2911181

Information

• Patent Grant
• 2911181

• References
• Source

• Patent Number

  2,911,181

• Date Filed

  Not available

• Date Issued

  Tuesday, November 3, 1959
  65 years ago

• CPC

  • E21D15/54 - Details of the ends of props
  • E21D15/38 - with longitudinally-divided upper or lower prop parts

• US Classifications

  • 248 - Supports