Boat keel tool

Geometrical instruments – Straight-line light ray type – Alignment device

Patent

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Details

33263, 33180R, 33174R, G01C 1500

Patent

active

044519893

ABSTRACT:
A boat keel tool which is designed to check the alignment of a keel with the center line of a boat and simultaneously measure and check the cross sectional surface of a boat keel from the lead edge of the keel to the trailing edge of the keel.

REFERENCES:
patent: 2364064 (1944-12-01), Francesco
patent: 2737722 (1956-03-01), Keim
patent: 2814125 (1957-11-01), Hartwig
patent: 3389911 (1968-06-01), Castiglione, Jr.

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