3815325

Information

• Patent Grant
• 3815325

• References
• Source

• Patent Number

  3,815,325

• Date Filed

  Not available

• Date Issued

  Tuesday, June 11, 1974
  50 years ago

• CPC

  • B43M7/004 - including non-mechanical means
  • Y10S83/912 - Envelope openers

• US Classifications

  • 053 - Package making
  • 083 - Cutting
  • 156 - Adhesive bonding and miscellaneous chemical manufacture
  • 216 - Etching a substrate: processes