4 Utility Patents
#9 in Niles, US
#16,673 in
#481,365 in US
Forward Citations = 19
Company Filing History:

United Refractories, Inc.
where one patent can have more than one assignee
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#9 in Niles, US
#16,673 in
#481,365 in US
Company Filing History:

Get your Inventor Badge Today