3579774

Information

• Patent Grant
• 3579774

• References
• Source

• Patent Number

  3,579,774

• Date Filed

  Not available

• Date Issued

  Tuesday, May 25, 1971
  54 years ago

• CPC

  • A47C27/0456 - Use of stiffening sheets, lattices or grids in, on, or under, spring inlays
  • B68G7/054 - Arrangements of sheatings between spring cores and overlying paddings
  • Y10T29/481 - Method

• US Classifications

  • 029 - Metal working
  • 112 - Sewing