| http://www.w3.org/ns/prov#value | - A valve including a valve stem, valve core and valve the housing rotatively supported to the valve body, body, a guide slot and fixed follower means cooperatively spring means in one of said first and second chambers situated relative to the stern and the body to permit linear normally biasing said diaphragm in one linear direcmovement of the stem and also transfer the linear movetion, ment into r
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