1997292

Information

• Patent Grant
• 1997292

• References
• Source

• Patent Number

  1,997,292

• Date Filed

  Not available

• Date Issued

  Tuesday, April 9, 1935
  90 years ago

• CPC

  • B21D28/24 - Perforating
  • Y10T83/2161 - By free weight of stripper
  • Y10T83/8831 - Plural distinct cutting edges on same support

• US Classifications

  • 083 - Cutting
  • 076 - Metal tools and implements, making