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Richard M. Pierce
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Coon Rapids, MN, US
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Patents Grants
last 30 patents
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Patent Grant
Cleaning liquid dispensing system for a hard floor surface cleaner
Patent number
6,735,811
Issue date
May 18, 2004
Tennant Company
Bruce F. Field
A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Patents Applications
last 30 patents
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Patent Application
CLEANING HEAD AND MOBILE FLOOR CLEANER
Publication number
20110219555
Publication date
Sep 15, 2011
TENNANT COMPANY
Bruce F. Field
A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information
Patent Application
Cleaning liquid dispensing system for a hard floor surface cleaner
Publication number
20030019069
Publication date
Jan 30, 2003
Bruce F. Field
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL