Patent for improvements to an automatic switchboard "to provide a construction of board and a connected system of wiring which will permit a subscriber at a telephone in one town to call up the operator or central at a distant point and converse with him without operating the other instruments in his town and at the same time preventing other subscribers from breaking into the line" (lines 12-20).
Patent for piling structures used in bridges and other structures built in sandy areas that allows for digging the piling hole to any depth desired and prevents cave-ins of the interior of the piling before it is filled with concrete.
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