2758521

Information

• Patent Grant
• 2758521

• References
• Source

• Patent Number

  2,758,521

• Date Filed

  Not available

• Date Issued

  Tuesday, August 14, 1956
  68 years ago

• CPC

  • B31B49/00 - Machinery, accessories or processes not provided for in B31B1/00 - B31B47/00
  • B31B1/00 - Box, carton, envelope or bag making machinery characterised by performing specific operations
  • B31D5/0013 - the inserts having interengaged slotted panels
  • B31D5/0026 - involving collapsing or stacking the inserts

• US Classifications

  • 493 - Manufacturing container or tube from paper