Convertible and combinable multipurpose article of furniture and toy

作者: Creutz Helmut

DOI:

关键词: Architectural engineeringEngineering drawingEngineeringConvertible

摘要:

参考文章(7)
James E Robinson, Booster seat for chairs ,(1947)
Lester Selonek, Toy combination crib and chair ,(1960)
Harold E Lee, George L Gerber, Steel and wood furniture frame construction ,(1950)
Frimberger Ernst, Modular toy structure ,(1959)
William E Mclaren, Convertible high chair. ,(1918)