Straightedges (guides; curve rulers or templets B43L13/20; straightedges characterised by the provision of indicia or the like for measuring, e.g. rulers or tapes with measuring scales or marks for direct reading, G01B)

Child Classifications

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• B43L 7/002
• B43L 7/005
• B43L 7/007
• B43L 7/02 T-squares
• B43L 7/027 Plural non-adjustable straightedges fixed at right angles (B43L7/02 takes precedence)
• B43L 7/033 Plural non-adjustable straightedges forming non-right angles
• B43L 7/04 with rollers (with interconnected rollers B43L13/02)
• B43L 7/08 with arrangements for attaching additional drawing equipment, e.g. for hatching, dotting
• B43L 7/10 Plural straightedges relatively movable