1386351

Information

• Patent Grant
• 1386351

• References
• Source

• Patent Number

  1,386,351

• Date Filed

  Not available

• Date Issued

  Tuesday, August 2, 1921
  104 years ago

• CPC

  • G04B3/006 - Mechanical winding up; winding up with special equipment
  • G04B3/06 - Keys or the like with means preventing overwinding

• US Classifications

  • 081 - Tools
  • 968 - Horology