3706331

Information

• Patent Grant
• 3706331

• References
• Source

• Patent Number

  3,706,331

• Date Filed

  Not available

• Date Issued

  Tuesday, December 19, 1972
  52 years ago

• CPC

  • E04C5/0618 - Closed cages with spiral- or coil-shaped stirrup rod
  • B21F27/124 - applied by rotation
  • B23K11/0086 - Grids or mats used in concrete structures
  • E04C5/16 - Auxiliary parts for reinforcements

• US Classifications

  • 140 - Wireworking
  • 219 - Electric heating