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Perimeter alarm apparatus
Patent #: 4136338
Issued on: 01/23/1979
Inventor: Antenore
Shoplifting alarm system and method
Patent #: 4336531
Issued on: 06/22/1982
Inventor: Kincaid
Electronic detection systems and methods
Patent #: 4471343
Issued on: 09/11/1984
Inventor: Lemelson
Apparatus for detecting unauthorized egress by patient from position of confinement
Patent #: 4536755
Issued on: 08/20/1985
Inventor: Holzgang , et al.
Portable, disposable warning device for detecting urine-wet undergarments
Patent #: 4539559
Issued on: 09/03/1985
Inventor: Kelly , et al.
Bed departure detection system
Patent #: 4539560
Issued on: 09/03/1985
Inventor: Fleck , et al.
Passageway selective detector mechanism and system
Patent #: 4555696
Issued on: 11/26/1985
Inventor: Brown
Personnel security system
Patent #: 4682155
Issued on: 07/21/1987
Inventor: Shirley
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Unauthorized personnel detection system
Patent #: 4684933
Issued on: 08/04/1987
Inventor: Dill
Abduction-preventing collar
Patent #: 4694284
Issued on: 09/15/1987
Inventor: Leveille , et al.
Apparatus to indicate when a patient has evacuated a bed
Patent #: 4700180
Issued on: 10/13/1987
Inventor: Vance
Electronic confinement arrangement for animals
Patent #: 4733633
Issued on: 03/29/1988
Inventor: Yarnall, Sr. , et al.
Arrangement for the determination of movement sequences in running disciplines
Patent #: 4736312
Issued on: 04/05/1988
Inventor: Dassler , et al.
Electronic confinement and communications arrangement for animals
Patent #: 4745882
Issued on: 05/24/1988
Inventor: Yarnall, Sr. , et al.
Grain-oriented electromagnetic steel sheet and process for producing the same
Patent #: 4753692
Issued on: 06/28/1988
Inventor: Kuroki , et al.
Apparatus and system for animal training
Patent #: 4766847
Issued on: 08/30/1988
Inventor: Venczel , et al.
Diaper wetness signalling system
Patent #: 4768023
Issued on: 08/30/1988
Inventor: Xie
EAS tag with helical coil
Patent #: 4774504
Issued on: 09/27/1988
Inventor: Hartings
Surveillance alarm-security system
Patent #: 4777477
Issued on: 10/11/1988
Inventor: Watson
Apparatus for monitoring persons or the like
Patent #: 4777478
Issued on: 10/11/1988
Inventor: Hirsch , et al.
Pet or infant training device and method
Patent #: 4780706
Issued on: 10/25/1988
Inventor: Bollag
Distance monitor especially for child surveillance
Patent #: 4785291
Issued on: 11/15/1988
Inventor: Hawthorne
Device for detecting urine in diapers
Patent #: 4796014
Issued on: 01/03/1989
Inventor: Chia
Anti-shoplifting system
Patent #: 4800369
Issued on: 01/24/1989
Inventor: Gomi , et al.
Alarm tag
Patent #: 4812811
Issued on: 03/14/1989
Inventor: Asbrink , et al.
Patient tracking system
Patent #: 4814751
Issued on: 03/21/1989
Inventor: Hawkins , et al.
Personal safety radio device
Patent #: 4870700
Issued on: 09/26/1989
Inventor: Ormanns , et al.
Newborn anti-theft device Patent #: 4899134
Issued on: 02/06/1990
Inventor: Wheeless, Jr.