1891611

Information

• Patent Grant
• 1891611

• References
• Source

• Patent Number

  1,891,611

• Date Filed

  Not available

• Date Issued

  Tuesday, December 20, 1932
  92 years ago

• CPC

  • G04B37/0033 - with cover or bottom which can slide or turn (without a spring action)

• US Classifications

  • 368 - Horology: time measuring systems or devices
  • 206 - Special receptacle or package
  • 968 - Horology