Timeline for all types of items produced by
Quality Soft. [Reseda, CA, USA]

Year	Items
1978	1
1979	9
1980	10
1981	2
1982	1
1983	4
1985	1
1987	1

29 items with a valid date were considered for this timeline (96.67% of the total)
1 item with an invalid date.

Help us in our quest to find exact dates for:

198?: 1 item.