1623017

Information

• Patent Grant
• 1623017

• References
• Source

• Patent Number

  1,623,017

• Date Filed

  Not available

• Date Issued

  Tuesday, March 29, 1927
  97 years ago

• CPC

  • F26B11/0472 - the elements being loose bodies or materials
  • F26B11/0413 - the subdivision consisting of concentric walls
  • F26B11/188 - the subdivisions consisting of concentric perforated walls, or spiral-shaped walls

• US Classifications

  • 034 - Drying and gas or vapor contact with solids