1849539

Information

• Patent Grant
• 1849539

• References
• Source

• Patent Number

  1,849,539

• Date Filed

  Not available

• Date Issued

  Tuesday, March 15, 1932
  93 years ago

• CPC

  • B23B31/1284 - with a centre
  • Y10T82/26 - Work driver

• US Classifications

  • 082 - Turning