Walking aids manipulated by one arm - Requirements and test methods - Part 1: Elbow crutches (ISO 11334-1:1994); German version EN ISO 11334-1:1997— 8 стр.
Assistive products for walking manipulated by one arm - Requirements and test methods - Part 1: Elbow crutches (ISO 11334-1:2007); German version EN ISO 11334-1:2007— 22 стр.
Assistive products for walking manipulated by one arm - Requirements and test methods - Part 1: Elbow crutches (ISO 11334-1:2007); German version EN ISO 11334-1:2007— 22 стр.