meglio dell'ariete idraulico:
Thomas G. ALLEN : Hydrautomat "Water Staircase" ( 1922 )
Ricorda molto lo Zydro Energy Device:
‘Energy Transformer’ Concept ... our Succesful Test Model
Thomas G. ALLEN : Hydrautomat "Water Staircase" ( 1922 )
Ricorda molto lo Zydro Energy Device:
‘Energy Transformer’ Concept ... our Succesful Test Model
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