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US5414412A
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Frequency dividing transponder, including amorphous magnetic alloy and tripole strip of magnetic material
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US5406262A
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Adjusting magnetic bias field intensity in EAS presence detection system to enhance detection
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US5337459A
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Magnetically releasable clamp
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EP0561560A1
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Frequency divider with variable capacitance
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US5347262A
|
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Theft-deterrent device providing force-sensitive tamper detection
|
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US5355120A
|
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Frequency-dividing-transponder tag
|
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US5241298A
|
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Electrically-and-magnetically-coupled, batteryless, portable, frequency divider
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US5140836A
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Theft-deterrent device including clamp
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US5069047A
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Release of pin-clutch mechanism in theft-deterrent device
|
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US5054172A
|
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Expulsion of detrimental substance from theft-deterrent device
|
|
US5065138A
|
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Magnetically-coupled two-resonant-circuit, frequency divider for presence-detection-system tag
|
|
US5065137A
|
|
Magnetically-coupled, two-resonant-circuit, frequency-division tag
|
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US5022244A
|
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Pin-clutch mechanism for theft-deterrent device
|
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EP0369622A2
|
|
Proximity reading of coded tag
|
|
US4944075A
|
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Detrimental-substance-containing theft-deterrent device
|
|
US4968972A
|
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Conversion of bias strip in a frequency-dividing-transponder tag into a tripole bar magnet to deactivate the tag
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US5031287A
|
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Detrimental-substance-containing theft-deterrent device
|
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US4964951A
|
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Process for making secure paper product
|
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EP0338696A2
|
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Frequency-dividing amorphous wire transponder for use in a presence detection system
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US4882569A
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Deactivatable fequency-dividing-transponder tag
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