Toepler-Holtz Electrical Machine. 1010 Chestnut St. Philadelphia Pa. ACETYLENE APPARATUS potrokviNa ALL PUR 'ILLY-METALS cfi HOLE MIETZ & WEISS ' WOLVERINE' GAS & GASOLINE ENGINES STATIONARY AND MARINE. WOLVERINE MOTOR WORKS 12 Hu ron St. Grand Rapids Mich Buy Telephones THAT ARE GOOD--NOT -CHEAP THINGS.' WESTERN TELEPHONE CONSTRUCTION CO. 'American-Hunnings' TELEPHONES. AMERICAN ELECTRIC TELEPHONE CO. 173 South Canal St. Chicag, scientific american, 1899-09-23
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