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Inventor
WALSTRA ERIC JON
US
2 patents
Patents
2 patents
US6364028B1
Apr 2, 2002
Control and method for positioning a tool of a construction apparatus
LASER ALIGNMENT
33 citations
89
US6152238A
Nov 28, 2000
Control and method for positioning a tool of a construction apparatus
LASER ALIGNMENT
36 citations
89