3425656

Information

• Patent Grant
• 3425656

• References
• Source

• Patent Number

  3,425,656

• Date Filed

  Not available

• Date Issued

  Tuesday, February 4, 1969
  55 years ago

• CPC

  • E21D23/0418 - Positioning devices and stabilizing means for the props
  • E21D17/10 - Details of mine caps for engaging the tops of pit-props, with or without retaining-plates Retaining-plates

• US Classifications

  • 248 - Supports