3304671

Information

• Patent Grant
• 3304671

• References
• Source

• Patent Number

  3,304,671

• Date Filed

  Not available

• Date Issued

  Tuesday, February 21, 1967
  57 years ago

• CPC

  • E02D5/806 - involving use of explosives
  • E21D21/0026 - characterised by constructional features of the bolts

• US Classifications

  • 052 - Static structures
  • 227 - Elongated-member-driving apparatus
  • 405 - Hydraulic and earth engineering