1821562

Information

• Patent Grant
• 1821562

• References
• Source

• Patent Number

  1,821,562

• Date Filed

  Not available

• Date Issued

  Tuesday, September 1, 1931
  93 years ago

• CPC

  • F28D1/0316 - Assemblies of conduits in parallel
  • Y10S165/386 - To form only air passages

• US Classifications

  • 165 - Heat exchange