3670617

Information

• Patent Grant
• 3670617

• References
• Source

• Patent Number

  3,670,617

• Date Filed

  Not available

• Date Issued

  Tuesday, June 20, 1972
  52 years ago

• CPC

  • G10B1/00 - General design

• US Classifications

  • 084 - Music
  • 446 - Amusement devices: toys