1335433

Information

• Patent Grant
• 1335433

• References
• Source

• Patent Number

  1,335,433

• Date Filed

  Not available

• Date Issued

  Tuesday, March 30, 1920
  104 years ago

• CPC

  • B23D63/123 - using two or more grinding wheels simultaneously

• US Classifications

  • 076 - Metal tools and implements, making