1780352

Information

• Patent Grant
• 1780352

• References
• Source

• Patent Number

  1,780,352

• Date Filed

  Not available

• Date Issued

  Tuesday, November 4, 1930
  94 years ago

• CPC

  • A47C23/145 - with horizontal interlocking wound springs Attachment thereof to the frame

• US Classifications

  • 245 - Wire fabrics and structure