464307

Information

• Patent Grant
• 464307

• References
• Source

• Patent Number

  464,307

• Date Filed

  Not available

• Date Issued

  Tuesday, December 1, 1891
  133 years ago

• CPC

  • B21D28/28 - in tubes or other hollow bodies
  • Y10T83/386 - With expanding mandrel
  • Y10T83/403 - With manually actuated means to position or facilitate positioning of work
  • Y10T83/7653 - Having curved cutting edge to make arcuate cut, plural nonaligned intersecting cutting edges, or spaced punches

• US Classifications

  • 083 - Cutting
  • 269 - Work holders