Kerry's (Ultrasonics)
of Harold Hill, Romford
1963 The parent company, Kerry's (Great Britain) acquired P. G. Day (Electronics) of Hitchin who made electronic equipment for Kerry's (Ultrasonics)[1]
1964 Profits at Kerry's Engineering Co and Kerry's (Ultrasonics) were both affected by the move to Basildon[2]
1966 Part of Kerry's (Engineering and Electronics); moved to a new factory at Hitchin