3613491

Information

• Patent Grant
• 3613491

• References
• Source

• Patent Number

  3,613,491

• Date Filed

  Not available

• Date Issued

  Tuesday, October 19, 1971
  53 years ago

• CPC

  • B21D28/265 - with relative movement of sheet and tools enabling the punching of holes in predetermined locations of the sheet
  • Y10T83/2172 - Stripper encircles moving tool
  • Y10T83/6564 - By pattern or templet
  • Y10T83/8691 - Unicyclic
  • Y10T83/8761 - Continuously moving drive means [e.g., "gag"]
  • Y10T83/9437 - Shear-type female tool
  • Y10T83/9488 - Adjustable

• US Classifications

  • 083 - Cutting