414897

Information

• Patent Grant
• 414897

• References
• Source

• Patent Number

  414,897

• Date Filed

  Not available

• Date Issued

  Tuesday, November 12, 1889
  135 years ago

• CPC

  • B23Q1/52 - a single rotating pair
  • Y10T82/195 - having work oscillator

• US Classifications

  • 082 - Turning