Non-slip sewing ruler

Geometrical instruments – Straightedge type – Rules

Patent

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Details

33485, 33562, B43L 700

Patent

active

056154887

ABSTRACT:
A non-slip sewing ruler comprising an elongate guide member including a pair of apertures disposed therein. Releasably attached to the top surface of the guide member is a handle member having a pair of pin members extending therefrom. Each of the pin members defines a pin point which is received into a respective one of the apertures when the handle member is attached to the guide member. The handle member is selectively movable between a first position wherein the pin points reside within the apertures, and a second position wherein the pin points protrude from the bottom surface of the guide member.

REFERENCES:
patent: 470754 (1892-03-01), Hartig
patent: 776897 (1904-12-01), Ferris
patent: 2026768 (1936-01-01), Aronson
patent: 2307892 (1943-01-01), Lowther
patent: 2642674 (1953-06-01), Schell, Jr.
patent: 3087250 (1963-04-01), Blue
patent: 4443953 (1984-04-01), Gregory
patent: 4821424 (1989-04-01), Loggins
patent: 4926564 (1990-05-01), Loggins
patent: 5191716 (1993-03-01), Anderson
patent: 5471749 (1995-12-01), Brady

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