Geometrical instruments – Scriber – Parallel line
Patent
1988-12-12
1990-06-19
Haroian, Harry N.
Geometrical instruments
Scriber
Parallel line
33DIG20, B43L 1302
Patent
active
049340581
ABSTRACT:
Stone Scribe is such that enables the skilled stone mason (specifically one who lays flagstone) to do accurate and precise markings when cutting the stones to fit with tight joints. The Stone Scribe is an uncomplicated set of metal bars set up to be sturdy enough to actually trace the edge of one stone on to another. This tool enables the worker to do professional jobs, minimizing the time spent.
REFERENCES:
patent: 637923 (1899-11-01), Chase
patent: 915219 (1909-03-01), Regelson
patent: 1276261 (1918-08-01), Peterson
patent: 1662165 (1928-03-01), Punt
patent: 2409106 (1946-10-01), Connelly
patent: 3918162 (1975-11-01), Houle
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