1040621

Information

• Patent Grant
• 1040621

• References
• Source

• Patent Number

  1,040,621

• Date Filed

  Not available

• Date Issued

  Tuesday, October 8, 1912
  113 years ago

• CPC

  • B65D90/10 - Manholes Inspection openings Covers therefor
  • Y10T137/5462 - Flush with ground or pavement surface

• US Classifications

  • 052 - Static structures
  • 137 - Fluid handling