Rotary cleaning tool

• US 2,548,923 A
• Filed: 08/20/1945
• Issued: 04/17/1951
• Est. Priority Date: 08/20/1945
• Status: Expired due to Term

• Current Assignee: Frank J. Walters, Homer B. Nelson
• Original Assignee: Frank J. Walters, Homer B. Nelson
• Inventors: Walters, Frank J., Nelson, Homer B.
• Application Number:
  US02/611,670
• Time in Patent Office: 2,066 Days
• US Class Current: 15/24
• CPC Class Codes: A47L 11/38 Machines, specially adapted for cleaning walls, ceilings, roofs, or the like
• CPC Class Codes: A47L 11/4041 Roll shaped surface treating tools
• CPC Class Codes: A47L 11/4069 Driving or transmission means for the cleaning tools
• CPC Class Codes: A47L 11/4088 Supply pumps; Spraying devices; Supply conduits
• CPC Class Codes: Y10S 29/068 Hollow spindle contains
• CPC Class Codes: Y10T 29/4528 with rotary head

Claims