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SPATIAL POSITIONING SYST
US6 patents
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US5294970AMar 15, 1994
Spatial positioning system
SPATIAL POSITIONING SYST147 citations96
US5100229AMar 31, 1992
Spatial positioning system
SPATIAL POSITIONING SYST313 citations96
US5579102ANov 26, 1996
Transmitter and receiver units for spatial position measurement system
SPATIAL POSITIONING SYST82 citations94
US5461473AOct 24, 1995
Transmitter and receiver units for spatial position measurement system
SPATIAL POSITIONING SYST57 citations94
US5110202AMay 5, 1992
Spatial positioning and measurement system
SPATIAL POSITIONING SYST80 citations94
US5247487ASep 21, 1993
Spatial measurement recovery system
SPATIAL POSITIONING SYST46 citations90