| http://www.w3.org/ns/prov#value | - g; drive means on said housing for supporting and rotating said drum said drum, being removable from and replaceable on said drive means by vertical movement of said drum with respect to said drive means; a removable cover over said housing and drum which, when closed substantially restricts access by a user to said drum, except for said drum opening, and which, when opened, permits removal of sai
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