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Drafting head for a drafting machine

Geometrical instruments – Straightedge type – Base attached
Patent

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Drafting instrument

Geometrical instruments – Straightedge type – Plural straightedges nonadjustably fixed at right angles
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Drafting instrument

Geometrical instruments – Straightedge type – Rules
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Drafting instrument

Geometrical instruments – Straightedge type – Square and pivoted straightedge
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Drafting instrument

Geometrical instruments – Straightedge type – Base attached
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Drafting instrument with electronically controllable scale

Geometrical instruments – Straightedge type – Rules
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Drafting machine

Geometrical instruments – Straightedge type – Base attached
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Drafting machine

Geometrical instruments – Straightedge type – Base attached
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Drafting machine

Geometrical instruments – Straightedge type – Base attached
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Drafting machine attachment

Geometrical instruments – Straightedge type – Base attached
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Drafting tool

Geometrical instruments – Straightedge type – Plural straightedges nonadjustably fixed at right angles
Patent

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Drafting tool

Geometrical instruments – Straightedge type – Rules
Reexamination Certificate

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Draughting tables, drawing boards, drawing instruments and analo

Geometrical instruments – Straightedge type
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Drawing aid

Geometrical instruments – Straightedge type
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Drawing apparatus

Geometrical instruments – Straightedge type – Base attached
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Drawing board

Geometrical instruments – Straightedge type – Base attached
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Drawing board

Geometrical instruments – Straightedge type – Base attached
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Drawing board apparatus

Geometrical instruments – Straightedge type – Base attached
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Drawing board assembly

Geometrical instruments – Straightedge type – Base attached
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Drawing head

Geometrical instruments – Straightedge type – Base attached
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