| http://www.w3.org/ns/prov#value | - In the accompanying drawings, in which several of various possible embodiments of the invention are illustrated, FIG. 1 is a longitudinal section of a reversible coulometer according to this invention; FIG. 2 is a longitudinal section of an alternate construction of a reversible coulometer of this invention; FIG. 3 is a section of another alternate construction of a reversible coulometer and switc
|
