Geometrical instruments – Gauge – Template
Reexamination Certificate
2006-08-29
2006-08-29
Guadalupe-McCall, Yaritza (Department: 2859)
Geometrical instruments
Gauge
Template
C033S476000, C033S481000, C033S492000
Reexamination Certificate
active
07096592
ABSTRACT:
A stairway can be constructed by using movable tread/riser supports placed along a stairway stringer and the supports can be moved as a group or individually to accommodate a stairway slope of any desired degree. It is desirable to mark a stringer for the uniform equal spacing of the location for the tread/risers and to establish the pivot positions for mounting the supports on the stringer. The present invention is an apparatus that will permit a user to locate the desired pivot holes equally spaced and aligned along a stringer.
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Guadalupe-McCall Yaritza
Wasson George W.
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