612941

Information

• Patent Grant
• 612941

• References
• Source

• Patent Number

  612,941

• Date Filed

  Not available

• Date Issued

  Tuesday, October 25, 1898
  126 years ago

• CPC

  • E03B9/10 - Protective plates or covers
  • Y10T137/545 - With casing, flush with ground or pavement surface
  • Y10T137/5462 - Flush with ground or pavement surface
  • Y10T137/5497 - Protection against freezing

• US Classifications

  • 137 - Fluid handling
  • 138 - Pipes and tubular conduits