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Issue Date | Title | Author(s) |
---|---|---|
1994 | SOLAR PHOTOVOLTAIC GADGETS | Patel, J B |
1994 | SOLAR COOKER & STILLS | Patel, J B |
1994 | BATTERY OPERATED ROAD VEHICLES | Patel, J B |
1994 | BIOMASS GASIFIER | Patel, J B |
1994 | SOLAR LANTERNS | Patel, J B |
1994 | SOLAR DRYERS | Patel, J B |
1994 | SOLAR KILNS | Patel, J B |
1990 | AIR-CRAFT TOWER | Patel, J B |
1990 | MECHANISED SPEED BOATS | Patel, J B |
1990 | UMBRELLA RIDE | Patel, J B |
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