Geometrical instruments – Scriber – Parallel line
Patent
1990-08-20
1991-02-19
Haroian, Harry N.
Geometrical instruments
Scriber
Parallel line
101328, 33 42, B43L 1300
Patent
active
049931598
ABSTRACT:
A marking apparatus is dislcosed which has a reversible rotating drum removably enclosed in a housing which has on its outer extremities, projections, which come into contact with a marking device at each revolution and the projection then deposits the marking fluid on a workpiece such as a 4.times.8 sheet so that a nailing schedule may be marked accurately around the edges and down the center of the workpiece.
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Birmingham Ronald W.
Hull Harold L.
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