3308987

Information

• Patent Grant
• 3308987

• References
• Source

• Patent Number

  3,308,987

• Date Filed

  Not available

• Date Issued

  Tuesday, March 14, 1967
  57 years ago

• CPC

  • B65D45/10 - incorporating tightening screws
  • B65D90/10 - Manholes Inspection openings Covers therefor
  • F16J13/20 - mounted by mobile fastening on swinging arms
  • F16J13/24 - with safety devices

• US Classifications

  • 220 - Receptacles