AN IMPROVED ROCKING AND DUMPING GRATE. DUNNING'S ROCKING AND DUMPING GRATE. Colored Mortar for Brickwork. Ventriloquism. HAND AND POWER PRESSES FOR INDUSTRIAL USES. Electric 'Sunstroke.” SELF-OILING CONCAVE WASHER. BOOMER & ROSCHERT'S POWER SCREW TANKAGE PRESS., scientific american, 1888-02-18
AN IMPROVED ROCKING AND DUMPING GRATE. DUNNING'S ROCKING AND DUMPING GRATE. Colored Mortar for Brickwork. Ventriloquism. HAND AND POWER PRESSES FOR INDUSTRIAL USES. Electric 'Sunstroke.” SELF-OILING CONCAVE WASHER. BOOMER & ROSCHERT'S POWER SCREW TANKAGE PRESS., scientific american, 1888-02-18
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