Cutlery – Cutting tools – With guard and/or guide
Patent
1989-05-19
1990-02-27
Watts, Douglas D.
Cutlery
Cutting tools
With guard and/or guide
30294, 33 42, B26B 2900
Patent
active
049034090
ABSTRACT:
A drywall scribing and scoring tool for a typical wallboard is provided in which a knife holding unit and scribe units can be adjusted along a scale on an elongated arm of a T-square member. When the short head portion of the T-square member is slid along one edge of the wall board by a person the tool will cut a score into the wall board for breaking to a predetermined size and mark center lines for wall stud nailing locations simultaneously upon the wall board allowing easy installation of the wall board to the wall studs.
REFERENCES:
patent: 1577569 (1926-03-01), Donley
patent: 2090183 (1937-08-01), Capstick
patent: 2098641 (1937-11-01), Cook
patent: 4334360 (1982-06-01), Burns et al.
Kaplan Stuart N.
Matassa Frank
Miller Richard L.
Watts Douglas D.
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