17 Utility Patents
#6 in Boucherville
#2,923 in Canada
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Forward Citations = 175
Company Filing History:
Les Materiaux De'construction Oldcastle Canada Inc.
Oldcastle Building Products Canada, Inc.

4. 1 out of 2
Les Matériaux De Construction Oldcastle Canada Inc.
5. 1 out of 4
National Film Board of Canada
where one patent can have more than one assignee
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