3517534

Information

• Patent Grant
• 3517534

• References
• Source

• Patent Number

  3,517,534

• Date Filed

  Not available

• Date Issued

  Tuesday, June 30, 1970
  54 years ago

• CPC

  • B21D22/16 - over shaping mandrels or formers
  • B21B19/16 - Rolling tubes without additional rollers arranged inside the tubes
  • B21B25/06 - Interchanging mandrels, fixing plugs on mandrel rods or cooling during interchanging mandrels
  • B21C45/00 - Separating mandrels from work or vice-versa

• US Classifications

  • 072 - Metal deforming