3217520

Information

• Patent Grant
• 3217520

• References
• Source

• Patent Number

  3,217,520

• Date Filed

  Not available

• Date Issued

  Tuesday, November 16, 1965
  59 years ago

• CPC

  • B21B37/46 - Roll speed or drive motor control
  • B21B1/06 - in a non-continuous process
  • B21B33/00 - Safety devices not otherwise provided for Breaker blocks Devices for freeing jammed rolls for handling cobbles; Overload safety devices
  • Y10T307/625 - Storage battery or accumulator

• US Classifications

  • 072 - Metal deforming
  • 307 - Electrical transmission or interconnection systems
  • 318 - Electricity: motive power systems