8 Utility Patents
#623 in Minneapolis, MN
#8,183 in Minnesota
#254,065 in US
#519,767 in the World
Forward Citations = 122
Company Filing History:
Century Mfg. Co.
Other

4. 1 out of 1
Ephtec, Inc.
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#623 in Minneapolis, MN
#8,183 in Minnesota
#254,065 in US
#519,767 in the World
Company Filing History:

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