3030891

Information

• Patent Grant
• 3030891

• References
• Source

• Patent Number

  3,030,891

• Date Filed

  Not available

• Date Issued

  Tuesday, April 24, 1962
  62 years ago

• CPC

  • E03B11/04 - without air regulators

• US Classifications

  • 417 - Pumps
  • 073 - Measuring and testing
  • 138 - Pipes and tubular conduits