3657917

Information

• Patent Grant
• 3657917

• References
• Source

• Patent Number

  3,657,917

• Date Filed

  Not available

• Date Issued

  Tuesday, April 25, 1972
  52 years ago

• CPC

  • B21J7/28 - operated by hydraulic or liquid pressure
  • B21J5/04 - by directly applied fluid pressure or explosive action
  • B30B11/027 - Particular press methods or systems
  • Y10S425/028 - Impact

• US Classifications

  • 072 - Metal deforming
  • 425 - Plastic article or earthenware shaping or treating: apparatus