9 Utility Patents
#26 in Parma, US
#7,222 in
#223,907 in US
#456,385 in the World
Forward Citations = 130
Company Filing History:

The Hansen Manufacturing Co.
The Weatherhead Company
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#26 in Parma, US
#7,222 in
#223,907 in US
#456,385 in the World
Company Filing History:

Get your Inventor Badge Today