Melvyn S. J. Ennis

📍 Newtownabbey, GB: #8 of 38 inventorsTop 25%

Overall (All Time): #1,298,129 of 4,157,543Top 35%

Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #	Title	Co-Inventors	Date
5115875	Hammer drills for making boreholes	—	1992-05-26
4921056	Hammer drills for making boreholes	—	1990-05-01
4765418	Borehole drill construction	—	1988-08-23
4705118	Hammer for use in a bore hole and apparatus for use therewith	—	1987-11-10