Geometrical instruments – Straightedge type – Square and pivoted straightedge
Reexamination Certificate
2007-04-03
2007-04-03
Guadalupe-McCall, Yaritza (Department: 2859)
Geometrical instruments
Straightedge type
Square and pivoted straightedge
C033S420000, C033S452000, C033S456000
Reexamination Certificate
active
10150888
ABSTRACT:
A tool for holding a framing square has a body with a pair of spaced longitudinal slots accommodating the flat legs of the framing square. Clamping devices mounted on the body clamp the body on the legs of the framing square to fix the position of the framing square on the body.
REFERENCES:
patent: 303861 (1884-08-01), King
patent: 433383 (1890-07-01), Wood
patent: 482350 (1892-09-01), Gagnebin
patent: 638446 (1899-12-01), Dean
patent: 1056917 (1913-03-01), Len
patent: 1295788 (1919-02-01), Nance
patent: 1301166 (1919-04-01), Potter
patent: 1934096 (1933-11-01), Shimp
patent: 2535585 (1950-12-01), Marquiss
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