Entrant Profile

Karl Sefcik

Location: Frisco, Texas United States


Company: Target


Profession: retail help


Number of times previously entering contest: 1


2014 Entries

Date Title Category Views Votes
06/27 sonic boom eliminator Automotive/​Transportation 2278 0

2011 Entries

Date Title Category Views Votes
06/29 Aircraft Planar Correction Transportation 3416 0