Hersteller
- Marchant (1)
- Marqette (1)
- Matra (1)
- Matsushita (3)
- Matthews (1)
- Maverick (2)
- MAX Electronics (1)
- MBO (22)
- Mcdonnel Douglas (6)
- Mcsi (1)
- MDS (9)
- Melchers & CO (5)
- Memo-Copy (2)
- Memorex (51)
- Memotech (1)
- Meonic (3)
- Mercury (7)
- Mesa (2)
- MF Italia (6)
- Mfax (1)
- Micro (1)
- Micro Data (10)
- Microcolour Graphics (1)
- Micronic (1)
- Micropartner (2)
- Microplex (5)
- Micros (37)
- Milda (11)
- Miltope (2)
- Mini Computer Systems (1)
- Mirwald Electronic (3)
- Mitek Systems (2)
- Mitsozo (1)
- Mitsuba (4)
- Mitsubishi (3)
- MKD (1)
- Mohawk (2)
- Monroe (36)
- Moore Business Forms (1)
- Motorola (3)
- MPI (1)
- Multidata (2)
- Multimail (2)
- Mupid (1)
- Muratec (Murata) (1)
- MVB (Citizen) (3)
