2 Ergebnisse für: sprocketed
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US2735900A - hans-christoph wohlrab etal - Google Patents
http://www.google.de/patents/US2735900
Keine Beschreibung vorhanden.
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US8662513B2 - Recyclable cardboard bicycle - Google Patents
https://www.google.de/patents/US8662513?dq=US+8662513+B2&hl=de&sa=X&ved=0ahUKEwiN14mWv47OAhWoAsAKHa0vBWAQ6AEIHjAA
A human powered land vehicle sufficiently rigid so as to transport a human rider constructed only from palpably recyclable and shreddably recyclable materials.