Hydraulic Passenger and ers, Trenton, N. J., or 117 Liberty Street, Canada, $5.00 a year, or one copy of the SCIENTIFIC AM- Freight Elevatore. MARVIN SAFE CO. RS & CO., OTIS BROTH ERICAN and one copy of the SUPPLEMENT, both mailed 3 ark Row. New Yark. for one year for $7.00. Single copies 10cents.…
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