1993809

Information

• Patent Grant
• 1993809

• References
• Source

• Patent Number

  1,993,809

• Date Filed

  Not available

• Date Issued

  Tuesday, March 12, 1935
  89 years ago

• CPC

  • B23Q1/70 - Stationary or movable members for carrying working-spindles for attachment of tools or work
  • B23B23/04 - Live centres
  • B23B2260/0082 - Sliding contact bearings
  • B23B2260/0085 - Needle roller bearings
  • B23B2260/136 - Springs
  • Y10T82/2562 - Spindle and bearings
  • Y10T82/2568 - Center

• US Classifications

  • 384 - Bearings
  • 082 - Turning