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Books by Wm. Paul Gerhard

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4 books found
The American Practice Of Gas Piping And Gas Lighting In Buildings
The American Practice Of Gas Piping And Gas Lighting In Bui…
By: Wm. Paul Gerhard
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The disposal of sewage of isolated country houses
The disposal of sewage of isolated country houses
By: Wm. Paul Gerhard
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Gas-Lighting and Gas-Fitting, including specifications and rules for gas piping, notes on the advant
Gas-Lighting and Gas-Fitting, including specifications and …
By: Wm. Paul Gerhard
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The relative corrosion of cast-iron, wrought-iron and steel pipe in house-drainage systems
The relative corrosion of cast-iron, wrought-iron and steel…
By: Wm. Paul Gerhard
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