|
US2007093323A1
|
|
Ball for racquetball with training markings
|
|
US2007093367A1
|
|
Back treatment with slant table and user adjustments
|
|
US2007017558A1
|
|
Surface cleaner with multiple angled orifices
|
|
US2006152364A1
|
|
RFID with field changeable identification
|
|
US2005219951A1
|
|
Finding underground animals using transducer probes
|
|
US5342116A
|
|
Programmer's anti-slump chair with knee support
|
|
US5159332A
|
|
Proximity identification system with flux concentration in operating region
|
|
US5022099A
|
|
Radiation helmet
|
|
US4980539A
|
|
Portable warmer
|
|
US5021778A
|
|
Capacitance coupled proximity identification system
|
|
US4888474A
|
|
Proximity identification system with lateral flux magnetic rod coupling
|
|
US4782342A
|
|
Proximity identification system with lateral flux paths
|
|
US4656472A
|
|
Proximity identification system with power aided identifier
|
|
US4654658A
|
|
Identification system with vector phase angle detection
|
|
US4600829A
|
|
Electronic proximity identification and recognition system with isolated two-way coupling
|
|
US4580041A
|
|
Electronic proximity identification system with simplified low power identifier
|
|
US4546241A
|
|
Electronic proximity identification system
|
|
US4473825A
|
|
Electronic identification system with power input-output interlock and increased capabilities
|
|
US4388524A
|
|
Electronic identification and recognition system with code changeable reactance
|
|
US4459474A
|
|
Identification system with separation and direction capability and improved noise rejection
|
