1904237

Information

• Patent Grant
• 1904237

• References
• Source

• Patent Number

  1,904,237

• Date Filed

  Not available

• Date Issued

  Tuesday, April 18, 1933
  91 years ago

• CPC

  • F28F21/04 - of ceramic of concrete of natural stone
  • Y10S165/032 - having gas supply or exhaust manifold structure

• US Classifications

  • 165 - Heat exchange