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​​​​H. R.  Scientific Works

LINE WALKING SOLAR CAR

Resistance Coil Backelite

PLUG KEY ONE WAY 

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PHOTO CELL

RESISTENCE BOX

meter bridge teak wood

FARADAYS LAW GALVO TYPE

INDUCTION COIL

GENERATOR MODEL HEAVY IN ACRYLIC

Porous Pots Empty

MOTOR MODEL HEAVY

LECLANCHE CELL COMPLETE

Resistance Coil

PLUG KEY TWO WAY 

pencil-jockey