Item:Q9836: Difference between revisions
Created a new Item: block and tackle, device consisting of two pulleys (or in a borderline case only one movable pulley); device multiplying force; machine used to lift heavy loads |
(No difference)
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Created a new Item: block and tackle, device consisting of two pulleys (or in a borderline case only one movable pulley); device multiplying force; machine used to lift heavy loads |
(No difference)
|