Geometrical instruments – Miscellaneous – Light direction
Patent
1988-05-24
1990-05-15
Haroian, Harry N.
Geometrical instruments
Miscellaneous
Light direction
33404, E04G 2118
Patent
active
049245791
ABSTRACT:
A method and apparatus for laying out foundations prior to construction. Ideally, two stakes are provided for each corner to be formed in a construction project and line extends from each corner to an adjacent corner. Each stake is configured with a clamping mechanism which allows vertical and horizontal adjustment of the string associated therewith.
REFERENCES:
patent: 1336004 (1920-04-01), Victoria
patent: 2981000 (1961-04-01), Long
patent: 3250009 (1966-05-01), Oseka
patent: 3318004 (1967-05-01), Payne
patent: 4095343 (1978-06-01), McPhail
Haroian Harry N.
Kreten Bernhard
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