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Books by PHILADELPHIA GAS WORKS.

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ORDINANCES OF COUNCILS AND RULES AND REGULATIONS FOR THE INTRODUCTION OF GAS AND FOR EXTENSIONS AND ALTERATIONS OF GAS FITTINGS: Together with the Terms upon which the Public will be Supplied with Gas by the Trustees of the Philadelphia Gas Works.
ORDINANCES OF COUNCILS AND RULES AND REGULATIONS FOR THE IN…
By: PHILADELPHIA GAS WORKS.
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