1900612

Information

• Patent Grant
• 1900612

• References
• Source

• Patent Number

  1,900,612

• Date Filed

  Not available

• Date Issued

  Tuesday, March 7, 1933
  92 years ago

• CPC

  • G04D1/063 - provided with a pick-up means

• US Classifications

  • 073 - Measuring and testing
  • 968 - Horology