Timeline for all types of items produced by
Hewlett-Packard

Year	Items
1966	1
1973	2
1974	2
1975	6
1976	34
1977	50
1978	17
1979	7
1980	20
1981	2
1982	22
1983	7
1984	17
1985	19
1986	6
1987	5
1988	7
1989	4
1990	2
1991	7
1992	5
1993	4
1994	2
1995	4
1998	4
1999	2
2000	2
2009	1

261 items with a valid date were considered for this timeline (13.05% of the total)
1739 items with an invalid date.

Help us in our quest to find exact dates for:

197?: 865 items.
198?: 874 items.