Geometrical instruments – Straightedge type – Wall guide and plumb
Patent
1983-01-17
1984-09-11
Haroian, Harry N.
Geometrical instruments
Straightedge type
Wall guide and plumb
33410, E04G 2118
Patent
active
044702000
ABSTRACT:
Apparatus and method for leveling masonry blocks are disclosed by which at least two courses of blocks can be laid and leveled without having to reposition the apparatus and without having to construct lead corners.
REFERENCES:
patent: 614577 (1898-11-01), Reineking
patent: 2919489 (1960-01-01), Espinosa
patent: 3299515 (1967-01-01), Lessard
patent: 3751810 (1973-08-01), Valva
Auto Leads, Inc.
Haroian Harry N.
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