1714989

Information

• Patent Grant
• 1714989

• References
• Source

• Patent Number

  1,714,989

• Date Filed

  Not available

• Date Issued

  Tuesday, May 28, 1929
  96 years ago

• CPC

  • B21C37/15 - Making tubes of special shape Making tube fittings
  • B21C37/155 - Making tubes with non circular section
  • B21D11/06 - Bending into helical or spiral form Forming a succession of return bends
  • B21D53/00 - Making other particular articles
  • G01D11/18 - Springs

• US Classifications

  • 072 - Metal deforming