US1277093A
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Lumber-ship.
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US1272479A
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Method of building foundations for subaqueous tunnels.
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US1221068A
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Method of building and placing piers.
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US1221067A
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Tunnel and method of building same.
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US1260416A
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Tunnel construction.
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US1163096A
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Tunnel construction.
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US1160180A
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Apparatus for constructing dry-docks.
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US1151958A
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Tunnel construction.
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US1060271A
|
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Method of building subaqueous tunnels.
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US784413A
|
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Subaqueous tunnel construction.
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US797524A
|
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Subaqueous tunnel.
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US745457A
|
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Subaqueous tunnel.
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US745456A
|
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Subaqueous tunnel.
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US745454A
|
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Subaqueous working-chamber.
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US745452A
|
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Sheeting.
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US741589A
|
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Masonry water-stopper.
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US741588A
|
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Sheeting-driver.
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US745455A
|
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Coffer-dam and foundation.
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US745453A
|
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Pilot-sheeting.
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