2389138

Information

• Patent Grant
• 2389138

• References
• Source

• Patent Number

  2,389,138

• Date Filed

  Not available

• Date Issued

  Tuesday, November 20, 1945
  79 years ago

• CPC

  • B25D9/005 - Devices for testing the tool's performance

• US Classifications

  • 073 - Measuring and testing