1692556

Information

• Patent Grant
• 1692556

• References
• Source

• Patent Number

  1,692,556

• Date Filed

  Not available

• Date Issued

  Tuesday, November 20, 1928
  96 years ago

• CPC

  • B28B11/22 - for cleaning

• US Classifications

  • 209 - Classifying, separating, and assorting solids