Geometrical instruments – Miscellaneous – Light direction
Patent
1979-05-24
1980-11-04
Martin, Jr., William D.
Geometrical instruments
Miscellaneous
Light direction
33339, 33412, 24261R, G01C 1500
Patent
active
042311560
ABSTRACT:
A tool for holding lines such as are used in guiding paving machines, in earth moving and leveling, and the like, comprising a stake, ordinarily a length of cylindrical metal rod or tubular stock with a ground penetrating point, a line holder of similar, lighter stock and having an offset or angulated end portion to which the line is connected, and a unique clamp for mounting the line holder on the stake with multi-mode adjustment capability.
REFERENCES:
patent: 1336004 (1920-04-01), Victoria
patent: 3250009 (1966-05-01), Oseka
patent: 3348312 (1967-10-01), Jones
patent: 3763567 (1973-10-01), Hudis
patent: 3883934 (1975-05-01), Rochfort
patent: 3932049 (1976-01-01), Hirato
Martin, Jr. William D.
Myers Lawrence F.
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