1788621

Information

• Patent Grant
• 1788621

• References
• Source

• Patent Number

  1,788,621

• Date Filed

  Not available

• Date Issued

  Tuesday, January 13, 1931
  94 years ago

• CPC

  • B23B23/04 - Live centres
  • B23B2233/08 - Centres or drivers comprising a ball
  • Y10T82/2568 - Center

• US Classifications

  • 082 - Turning