Roller skate and carrier device therefor
作者： Lewine Irving W , Arthur Woodard
DOI:
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摘要:
lens.org 参考文章(5)
Randolph Simon, Light-projecting attachment for shoes ,(1925)
Galgoczy Mikaly, Roller skate attachment ,(1938)
William C Muhlhausen, Electric-torch holder ,(1922)
Martin Molnar, Flash-light holder. ,(1918)
Abert Ernest, Feu arrière pour bicyclettes ou autres véhicules analogues ,(1934)