3216201

Information

• Patent Grant
• 3216201

• References
• Source

• Patent Number

  3,216,201

• Date Filed

  Not available

• Date Issued

  Tuesday, November 9, 1965
  59 years ago

• CPC

  • E21D23/0073 - with advancing shifting devices connected therewith
  • E21D23/16 - Hydraulic or pneumatic features
  • F15B11/20 - controlling several interacting or sequentially-operating members

• US Classifications

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