3698448

Information

• Patent Grant
• 3698448

• References
• Source

• Patent Number

  3,698,448

• Date Filed

  Not available

• Date Issued

  Tuesday, October 17, 1972
  52 years ago

• CPC

  • B21F15/06 - with additional connecting elements or material
  • B21F33/025 - Mounting of mattress innersprings on borderframes

• US Classifications

  • 140 - Wireworking