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Geometrical instruments – Straightedge type – Rules

Reference marking on construction materials

Geometrical instruments – Straightedge type – Rules

Reference markings on construction materials

Reissue Patent

Geometrical instruments – Straightedge type – Rules

Replacement edge drafting apparatus

Geometrical instruments – Straightedge type – Rules

Roofing tile course marking device

Geometrical instruments – Straightedge type – Rules

Ruler

Geometrical instruments – Straightedge type – Rules

Ruler

Geometrical instruments – Straightedge type – Rules

Ruler assembly

Geometrical instruments – Straightedge type – Rules

Ruler belt hanger

Geometrical instruments – Straightedge type – Rules

Ruler device

Geometrical instruments – Straightedge type – Rules

Ruler for measuring angles between an oriented axis and a vector

Geometrical instruments – Straightedge type – Rules

Ruler system

Geometrical instruments – Straightedge type – Rules

Ruler template for computer keyboard

Geometrical instruments – Straightedge type – Rules

Ruler with abrasive edge

Geometrical instruments – Straightedge type – Rules

Ruler with anti-slipping member

Geometrical instruments – Straightedge type – Rules

Ruler with magnifying cursor

Geometrical instruments – Straightedge type – Rules

Ruler with rubber overmolded to stainless steel base

Geometrical instruments – Straightedge type – Rules

Rules