3619913

Information

• Patent Grant
• 3619913

• References
• Source

• Patent Number

  3,619,913

• Date Filed

  Not available

• Date Issued

  Tuesday, November 16, 1971
  52 years ago

• CPC

  • A44C9/0038 - openable or able to be broken for safety reasons

• US Classifications

  • 434 - Education and demonstration
  • 063 - Jewelry