1308783

Information

• Patent Grant
• 1308783

• References
• Source

• Patent Number

  1,308,783

• Date Filed

  Not available

• Date Issued

  Tuesday, July 8, 1919
  105 years ago

• CPC

  • G01C19/44 - for indicating the vertical
  • Y10T74/1246 - by friction

• US Classifications

  • 074 - Machine element or mechanism
  • 033 - Geometrical instruments