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This article is within the scope of WikiProject Glass, a collaborative effort to improve the coverage of
glass on Wikipedia. If you would like to participate, please visit the project page, where you can join
the discussion and see a list of open tasks.GlassWikipedia:WikiProject Physics/Taskforces/GlassTemplate:WikiProject Glassglass articles
This article is within the scope of WikiProject Companies, a collaborative effort to improve the coverage of
companies on Wikipedia. If you would like to participate, please visit the project page, where you can join
the discussion and see a list of open tasks.CompaniesWikipedia:WikiProject CompaniesTemplate:WikiProject Companiescompany articles
This article is within the scope of WikiProject Pennsylvania, a collaborative effort to improve the coverage of
Pennsylvania on Wikipedia. If you would like to participate, please visit the project page, where you can join
the discussion and see a list of open tasks.PennsylvaniaWikipedia:WikiProject PennsylvaniaTemplate:WikiProject PennsylvaniaPennsylvania articles
This article is within the scope of WikiProject Pittsburgh, a collaborative effort to improve the coverage of
Pittsburgh and its
metropolitan area on Wikipedia. If you would like to participate, please visit the project page, where you can join
the discussion and see a list of open tasks.PittsburghWikipedia:WikiProject PittsburghTemplate:WikiProject PittsburghPittsburgh articles
