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Drawing

Diagram of Hydraulic System for O-4 Tractor

Date: 03 19 1947
Description: Diagram showing complete hydraulic system for the O-4 tractor.
Drawing

Mr. Dibble's Machine

Date: 1827
Description: Increase Lapham's drawing of a rig designed by Mr. Orange Dibble for removing rocks and other large debris from deep canal cuts.

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