689781

Information

• Patent Grant
• 689781

• References
• Source

• Patent Number

  689,781

• Date Filed

  Not available

• Date Issued

  Tuesday, December 24, 1901
  123 years ago

• CPC

  • B43L9/22 - Leg-angle adjusting-means separate from pivots

• US Classifications

  • 033 - Geometrical instruments