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Roger A. Day
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Lymington, GB
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last 30 patents
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Patent Grant
Reinforced pistons
Patent number
4,708,104
Issue date
Nov 24, 1987
AE PLC
Roger A. Day
B22 - CASTING POWDER METALLURGY
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Patent Grant
Reinforced pistons
Patent number
4,679,493
Issue date
Jul 14, 1987
AE PLC
Robert Munro
B22 - CASTING POWDER METALLURGY
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Patent Grant
Pistons
Patent number
4,586,553
Issue date
May 6, 1986
AE PLC
Gordon L. Allen
B22 - CASTING POWDER METALLURGY