Geometrical instruments – Straight-line light ray type – Alignment device
Reexamination Certificate
2006-02-28
2006-02-28
Fulton, Christopher W. (Department: 2859)
Geometrical instruments
Straight-line light ray type
Alignment device
C033SDIG021
Reexamination Certificate
active
07003890
ABSTRACT:
Wall reflectors work in conjunction with devices that emit wall laser beams, for assisting the attachment on a wall of items such as pictures. The wall reflectors are constructed to be attached on the wall, and to provide surfaces for reflecting the laser light beam into rays. Multiple wall reflectors can optionally also provide a whole pattern on the wall, such as a grid.
REFERENCES:
patent: 5063679 (1991-11-01), Schwandt
patent: 5673492 (1997-10-01), Williams
patent: 5912736 (1999-06-01), Marcuse et al.
patent: 6694630 (2004-02-01), Dang et al.
patent: 6891148 (2005-05-01), Rivera et al.
Fulton Christopher W.
Kavounas Gregory T.
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