1946885

Information

• Patent Grant
• 1946885

• References
• Source

• Patent Number

  1,946,885

• Date Filed

  Not available

• Date Issued

  Tuesday, February 13, 1934
  90 years ago

• CPC

  • B60H1/18 - the air being heated from the plant exhaust gases
  • Y10S165/098 - One shutter section having different flow area or flow direction with another shutter section

• US Classifications

  • 165 - Heat exchange
  • 237 - Heating systems