2800130

Information

• Patent Grant
• 2800130

• References
• Source

• Patent Number

  2,800,130

• Date Filed

  Not available

• Date Issued

  Tuesday, July 23, 1957
  67 years ago

• CPC

  • B42F17/32 - with means for staggering cards already in the file

• US Classifications

  • 040 - Card, picture, or sign exhibiting