1990112

Information

• Patent Grant
• 1990112

• References
• Source

• Patent Number

  1,990,112

• Date Filed

  Not available

• Date Issued

  Tuesday, February 5, 1935
  89 years ago

• CPC

  • B23D63/123 - using two or more grinding wheels simultaneously
  • B23D63/14 - Sharpening circular saw blades

• US Classifications

  • 076 - Metal tools and implements, making