1949879

Information

• Patent Grant
• 1949879

• References
• Source

• Patent Number

  1,949,879

• Date Filed

  Not available

• Date Issued

  Tuesday, March 6, 1934
  90 years ago

• CPC

  • B31B39/00 - Machinery characterised by making lined envelopes or bags
  • B31B19/84 - Forming valves or applying valve inserts
  • B31B2219/9061 - by deforming
  • B31B2237/05 - the bags having multilayered walls

• US Classifications

  • 493 - Manufacturing container or tube from paper