818554

Information

• Patent Grant
• 818554

• References
• Source

• Patent Number

  818,554

• Date Filed

  Not available

• Date Issued

  Tuesday, April 24, 1906
  119 years ago

• CPC

  • A63H13/15 - imitating drawing or writing
  • Y10T137/7854 - In couplings for coaxial conduits, e.g., drill pipe check valves

• US Classifications

  • 137 - Fluid handling