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Lizabeth W. Dretzka
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Woodbury, MN, US
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Patents Grants
last 30 patents
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Patent Grant
Dustpan
Patent number
D687204
Issue date
Jul 30, 2013
3M Innovative Properties Company
Lloyd S. Vasilakes
D32 - Washing, cleaning, or drying machine
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Patent Grant
Dustpan
Patent number
D684331
Issue date
Jun 11, 2013
3M Innovative Properties Company
Lloyd S. Vasilakes
D32 - Washing, cleaning, or drying machine
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Patent Grant
Broom
Patent number
D674197
Issue date
Jan 15, 2013
3M Innovative Properties Company
Adel M. Kassem Llano
D04 - Brushware