Pages that link to "File:Human pump02a.gif"
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The following pages link to File:Human pump02a.gif:
View (previous 50 | next 50) (20 | 50 | 100 | 250 | 500)- How to Build Human-Powered Water-Lifters (file link) (← links)
- How to Make a Hand Pump (file link) (← links)