Vol. LXXVII No. 3. [MOO A YEAR. HYDRAULIC BRAKE FOR CHECKING DRAWSPAN. HARLEM RIVER DRAWBRIDGE AT THIRD AVENUE. THIRD AVENUE DRAWSPAN ACROSS THE HARLEM RIVER NEW YORK., scientific american, 1897-07-17
Vol. LXXVII No. 3. [MOO A YEAR. HYDRAULIC BRAKE FOR CHECKING DRAWSPAN. HARLEM RIVER DRAWBRIDGE AT THIRD AVENUE. THIRD AVENUE DRAWSPAN ACROSS THE HARLEM RIVER NEW YORK., scientific american, 1897-07-17
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