| http://www.w3.org/ns/prov#value | - F. MATTKE ETAL TELEPHONE SET 2 Sheets-Sheet 2 Filed May 11, 1960 C. F. MATT/(E L.W. MOS/N6 6 MW ATTORNEY This invention relates to substation apparatus and more particularly to a universal telephone set that can be used on either a horizontal surface, such as a desk, or on a vertical surface, such as a wall.
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