Roland A. Blomgren

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Glen Ellyn, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Sanitizer attachment for a mobile floor cleaner
- Patent number 4,429,432
- Issue date Feb 7, 1984
- Servicemaster Industries, Inc.
- William M. Copeland
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Grant
Rotary floor cleaner
- Patent number 4,400,843
- Issue date Aug 30, 1983
- Service Master Industries, Inc.
- Roland A. Blomgren
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Grant
Cleaning tool
- Patent number 4,270,238
- Issue date Jun 2, 1981
- Service Master Industries, Inc.
- Robert L. Shallenberg
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Grant
Apparatus and method for mopping floors
- Patent number 4,174,977
- Issue date Nov 20, 1979
- Servicemaster Industries, Inc.
- Robert L. Shallenberg
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...