Geometrical instruments – Area integrators – Electrical
Patent
1975-01-27
1976-04-20
Aegerter, Richard E.
Geometrical instruments
Area integrators
Electrical
33180R, 33DIG10, B27C 100
Patent
active
039508579
ABSTRACT:
A layout tool for marking for cut out on the back of a panel or the like the outline of an electrical box. The tool comprises a bridge member having an outward boss and point and a layout bar having at one end an opening adapted to receive the boss, and on the opposite side of the opening, a second point. A blade is movable along the bar and may be set to the respective sides of the box when the opening of the bar receives the first point so that the setting may be transferred to the back of the panel as the point on the bar is made to coincide with an indentation made on the panel by the first point.
REFERENCES:
patent: 2349567 (1944-05-01), Townsend, Jr. et al.
patent: 3823754 (1974-07-01), Nix
Aegerter Richard E.
Hoopes Dallett
Little Willis
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