Flaschenzug aus Holz ab 10 J. von Kraul: Amazon.de: Spielzeug
Low-cost double pendulum for high-quality data collection with open-source video tracking and analysis - ScienceDirect
Pina DESIGN seit 1979 - Awning mast height adjustable 3 m, made of V2A stainless steel including accessories - real 3-compartment pulley set and 0.75 m ground sleeve for attachment | for