Category:Manufacturing companies established in 1820

Manufacturing companies established in the year 1820.

This is a broad category which captures companies whose primary activity is, or was, the manufacture of many identical items. A number of subcategories are regularly populated: vehicle manufacturing companies and electronics companies, among others. Jewelry and other 'artisan'-type manufacturers are typically categorized to Category:Design companies established in 1820 due to the singular nature of the goods produced and the design being a tantamount selling point.