1555053

Information

• Patent Grant
• 1555053

• References
• Source

• Patent Number

  1,555,053

• Date Filed

  Not available

• Date Issued

  Tuesday, September 29, 1925
  99 years ago

• CPC

  • E21D15/20 - with pawl, pin, cross-piece, or the like engaging with ratchet teeth, notches, holes, or the like, spaced apart at intervals

• US Classifications

  • 248 - Supports