3434389

Information

• Patent Grant
• 3434389

• References
• Source

• Patent Number

  3,434,389

• Date Filed

  Not available

• Date Issued

  Tuesday, March 25, 1969
  55 years ago

• CPC

  • E21D23/18 - of advancing mechanisms
  • E21D23/12 - Control
  • E21D23/148 - Wireless transmission of signals or commands
  • H01H43/16 - stopping automatically after a predetermined plurality of cycles of operation

• US Classifications

  • 091 - Motors: expansible chamber type
  • 405 - Hydraulic and earth engineering