517808

Information

• Patent Grant
• 517808

• References
• Source

• Patent Number

  517,808

• Date Filed

  Not available

• Date Issued

  Tuesday, April 3, 1894
  130 years ago

• CPC

  • F16L9/085 - Reinforced pipes
  • F16L1/038 - the pipes being made in situ

• US Classifications

  • 264 - Plastic and nonmetallic article shaping or treating: processes
  • 052 - Static structures
  • 405 - Hydraulic and earth engineering