2452639

Information

• Patent Grant
• 2452639

• References
• Source

• Patent Number

  2,452,639

• Date Filed

  Not available

• Date Issued

  Tuesday, November 2, 1948
  76 years ago

• CPC

  • B21D51/54 - cartridge cases
  • Y10T83/081 - With randomly actuated stopping means
  • Y10T83/2122 - By ejector within a hollow cutter
  • Y10T83/2203 - Oscillating means
  • Y10T83/388 - Actuated clamp element and work holder coact to position work
  • Y10T83/395 - One tool having only rectilinear motion[s]
  • Y10T83/727 - With means to guide moving work
  • Y10T83/7667 - Having curved cutting edge to make arcuate cut, plural nonaligned intersecting cutting edges, or spaced punches
  • Y10T83/8719 - With transmission yieldable on overload
  • Y10T83/8752 - Tool moves work to and against cooperating tool

• US Classifications

  • 083 - Cutting
  • 086 - Ammunition and explosive-charge making
  • 414 - Material or article handling