3357458

Information

• Patent Grant
• 3357458

• References
• Source

• Patent Number

  3,357,458

• Date Filed

  Not available

• Date Issued

  Tuesday, December 12, 1967
  57 years ago

• CPC

  • C21D7/04 - of the surface
  • Y10T29/49975 - Removing defects

• US Classifications

  • 138 - Pipes and tubular conduits
  • 029 - Metal working
  • 072 - Metal deforming