These are the sources and citations used to research industrial. This bibliography was generated on Cite This For Me on
In-text: (Hasbro, Inc, 2009)
Your Bibliography: Hasbro, Inc (2009). Sound generating puzzle. US 7585216 B2.
In-text: (Fenwick Enterprises, Llc, 2005)
Your Bibliography: Fenwick Enterprises, Llc (2005). Puzzle apparatus with audible sounds. US 6979245 B1.
In-text: (Fenwick Enterprises Llc, 2008)
Your Bibliography: Fenwick Enterprises Llc. (2008). US 7427066 B1.
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