A NEW AND USEFUL TELEPHONE Fig. 3MULTIPLE ACOUSTIC TELEPHONE FOR FACTORIES. Fig. L—THE SIMPSON TELEPHONE. ADJUSTABLE EMBROIDERY FRAME AND TABLE. SCHMIRES TABLE AND EMBROIDERY FRAME. AN IMPROVED HYDRAULIC PRESS. HORIZONTAL ARRANGEMENT., scientific american, 1892-08-06
A NEW AND USEFUL TELEPHONE Fig. 3MULTIPLE ACOUSTIC TELEPHONE FOR FACTORIES. Fig. L—THE SIMPSON TELEPHONE. ADJUSTABLE EMBROIDERY FRAME AND TABLE. SCHMIRES TABLE AND EMBROIDERY FRAME. AN IMPROVED HYDRAULIC PRESS. HORIZONTAL ARRANGEMENT., scientific american, 1892-08-06
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