Service Master Industries, Inc.

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Downers Grove, IL, US

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Patents Grantslast 30 patents

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
Tip device for a vacuum cleaner tank
- Patent number 4,102,462
- Issue date Jul 25, 1978
- Service Master Industries, Inc.
- Rex E. Beach
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Cleaning tool
- Patent number 3,992,747
- Issue date Nov 23, 1976
- Service Master Industries Inc.
- Austen B. Hufton
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...

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