2178439

Information

• Patent Grant
• 2178439

• References
• Source

• Patent Number

  2,178,439

• Date Filed

  Not available

• Date Issued

  Tuesday, October 31, 1939
  85 years ago

• CPC

  • B23Q5/145 - fluid-operated
  • B23Q2705/066 - fluid pressure controlled
  • Y10T82/2554 - Speed changing gear

• US Classifications

  • 082 - Turning