3902347

Information

• Patent Grant
• 3902347

• References
• Source

• Patent Number

  3,902,347

• Date Filed

  Not available

• Date Issued

  Tuesday, September 2, 1975
  49 years ago

• CPC

  • B21D28/02 - Punching blanks or articles with or without obtaining scrap Notching
  • B21D24/12 - mechanically
  • B21D35/00 - Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00

• US Classifications

  • 072 - Metal deforming
  • 100 - Presses