Adjustable carpentry angle apparatus

Geometrical instruments – Straightedge type – Plural straightedges – relatively moveable

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Details

33464, 33471, B43L 710

Patent

active

061052671

ABSTRACT:
A tool (10,10',10") for forming and applying an adjustable, selected angle to one or more pieces (8) of building material such as sheet rock, plywood, paneling or the like is shown comprising a first leg (12,12',12") having a longitudinally extending slot (34,54) pivotably attached to a second leg (20) with a connecting link (30) pivotably attached to the second leg and slidably and lockably attached in the slot (34,54) of the first leg (12,12',12")

REFERENCES:
patent: 223727 (1880-01-01), Halley
patent: 369499 (1887-09-01), Billings
patent: 735128 (1903-08-01), Murphy
patent: 847720 (1907-03-01), Barbo
patent: 899692 (1908-09-01), Clark
patent: 1366878 (1921-01-01), Curry
patent: 2140098 (1938-12-01), Weiskoff
patent: 2332347 (1943-10-01), Schaefer et al.
patent: 4955141 (1990-09-01), Welch
patent: 5414938 (1995-05-01), Meek

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