3920170

Information

• Patent Grant
• 3920170

• References
• Source

• Patent Number

  3,920,170

• Date Filed

  Not available

• Date Issued

  Tuesday, November 18, 1975
  49 years ago

• CPC

  • B23K11/008 - Manufacturing of metallic grids or mats by spot welding
  • B21F27/124 - applied by rotation
  • B21F27/18 - of meshed work for filters or sieves
  • Y10T29/49602 - Coil wound wall screen

• US Classifications

  • 228 - Metal fusion bonding
  • 029 - Metal working
  • 140 - Wireworking
  • 219 - Electric heating