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| Type | Company |
| Location | United States (North America) |
| Industry | Nonmetallic Minerals Industry |
| Holdings | Newspaper clippings: 1971-2003 Annual reports: 1929-2006 |
| includes | Pittsburgh Plate Glass Co. (Pittsburgh); PPG Industries (Deutschland) GmbH (Wuppertal) |
| URI | https://pm20.zbw.eu/folder/co/018453 |
| ID | co/018453 |