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Patent No. 5823572

Self Defense Weapon With Memo

A self defense weapon formed as a memo pad and which is easily held by a person's fingers, therefore making it possible to provide protection from a mugger and also to quickly and easily write a record or a message without failure of missing or forgetting significant information under a stressful situation.

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Assignee: Digital Products Corporation


Location: FortLauderdale, FL
No. of patents: 14

NumberTitleIssue Date
5103474Drive-by personnel monitoring system with radio link
A personnel monitoring system for monitoring presence or absence of particular individuals at preassigned monitoring locations. A local unit is provided at each monitoring location for detecting presence or absence. Each local unit is arranged for short r...
04/07/1992
5075670Personnel monitoring tag with tamper detection and secure reset
A signalling tag of the type used in house arrest systems has a tamper detection device for detecting removal of the tag from the monitored person. The signal is set to a tamper condition upon removal. The tamper detector can only be reset to the normal s...
12/24/1991
5032823Secure personnel monitoring system
A personnel monitoring system includes a tag worn by each monitored person. The tag repeatedly emits digital radio signals, and a predetermined bit in the signal changes with time according to a predetermined pattern. Monitoring apparatus detects the radi...
07/16/1991
4924211Personnel monitoring system
A system for monitoring presence of persons at preselected monitoring locations. A plurality of local units, one at each monitoring location, determines whether the monitored person is present or absent at the monitoring location and sends report signals ...
05/08/1990
4747120Automatic personnel monitoring system
A monitoring system for indicating the presence of a person at a remote location through a telephone line includes circuitry at a central location for automatically establishing a telephone link between the central and remote locations. A decoder at the r...
05/24/1988
4696385Electronic coin detection apparatus
Electronic coin or token detector apparatus is provided in accordance with the teachings of the present invention wherein a predetermined parameter of a coin under test is measured to determine genuineness and surface reflectivity is tested to insure a se...
09/29/1987
4678994Methods and apparatus employing apparent resonant properties of thin conducting materials
Methods and apparatus for sensing, switching and modulating relying upon apparent resonant properties of thin conductive materials are provided in accordance with the teachings of the present invention. According to the present invention, an output of an ...
07/07/1987
4569522Gaming device using visible randomization
A gaming apparatus uses a group of distinctively colored marbles which are released to travel down an inclined path consisting of four mutually perpendicular segments. A series of deflecting pins are provided along the path for randomizing movement of the...
02/11/1986
4533141Gaming apparatus with color sensitive detector
A gaming apparatus wherein a group of rolling elements each having a visible identification characteristic are released to travel down an inclined path. Disposed upon the inclined path are a plurality of deflectors each incorporating structure for preclud...
08/06/1985
4438296Multimessage automatic telephone polling methods and apparatus
Multimessage automatic telephone polling methods and apparatus are provided wherein, telephone numbers for automatic dialing are selected from a queue upon a basis of least prior unsuccessful attempts at calling each telephone number. Thereafter, selectio...
03/20/1984
4356348Techniques for detecting a condition of response on a telephone line
Methods and apparatus for detecting a condition of response on a telephone line are disclosed in accordance with the teachings of the present invention wherein time intervals between the zero crosspoints of an input signal are ascertained and the most pre...
10/26/1982
4201896Telephone polling apparatus using a plurality of timers to detect the line conditions
A telephone polling apparatus uses an energy detection device in cooperation with timing elements to provide discrimination between various conditions on the telephone line. These conditions are (1) a busy condition, (2) an answer condition, which can occ...
05/06/1980
4188510Telephone sequential number dialer with number incrementing
A telephone sequential dialer features a shift register which has a number of bit positions which are one more than the maximum number of digits to be dialed. A plurality of consecutive ONES starting at the leading edge of the shift register are inserted ...
02/12/1980
4160125Telephone polling apparatus
Telephone polling apparatus is disclosed for supplying a prerecorded message to a plurality of telephone subscriber stations in sequence and recording responses from the stations after supplying the message thereto. The apparatus stores a telephone number...
07/03/1979
 
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