1977759

Information

• Patent Grant
• 1977759

• References
• Source

• Patent Number

  1,977,759

• Date Filed

  Not available

• Date Issued

  Tuesday, October 23, 1934
  90 years ago

• CPC

  • B65D27/32 - Opening devices incorporated during envelope manufacture

• US Classifications

  • 222 - Dispensing
  • 383 - Flexible bags