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SUBTYPE_CONSTRAINT des_draughting_callout_subtypes FOR draughting_callout; (ONEOF (datum_feature_callout, datum_target_callout, dimension_curve_directed_callout, draughting_elements, geometrical_tolerance_callout, leader_directed_callout, projection_directed_callout, structured_dimension_callout) ANDOR surface_condition_callout); END_SUBTYPE_CONSTRAINT; -- des_draughting_callout_subtypes |