Category:3M

3M, St. Paul, Minnesota, USA

• 3M also bought the company "Revere" in 1960. Hence all later "Revere"-products are labelled "Revere 3M". So if don't find your "3M"-device here, it might be in the "Revere"-section.
• 3M also owned the company "Ferrania" from 1964 to 1996. Hence all/most "Ferrania"-products from this period are labelled "Ferrania 3M". So if don't find your "3M"-device here, it might be in the "Ferrania"-section.