| Patent Number |
Title Of Patent |
Date Issued |
| 5048641 |
Van-mounted ladder assembly with concealed radio antennas |
September 17, 1991 |
| The present invention has a pair of hollow fiberglass ladders supported on top of the roof of a van by a support means including a hollow standard extending up from the roof and located between the inner sides of the two ladders. Antennas are located in the hollow outer sides of the ladd |
| 5001772 |
Power pack with concealed radio transmitter for portable cellular telephone |
March 19, 1991 |
| The present power pack for a portable cellular telephone has a concealed radio transmitter for law enforcement use. The usual battery compartment in the housing of the power pack has a shortened battery compartment above which are located interior walls of the housing which are notched o |
| 4996787 |
SigSauer pistol with concealed radio transmitter |
March 5, 1991 |
| A SigSauer pistol is modified to hold on the inside of its plastic handle grip an antenna assembly and spring contacts connected conductively to the antenna assembly. A modified magazine casing in the handle of the pistol has a chamber below a false bottom for receiving batteries and a p |
| 4991225 |
Slidable battery holder for simulated pager with concealed radio transmitter |
February 5, 1991 |
| This is a slidable battery holder for a simulated pager having a concealed radio transmitter. A fixed part of the battery holder is affixed to a bracket inside the housing of the simulated pager and provides a guideway which is open at the lower end of the housing. A pair of cantilevered |
| 4936037 |
Pistol with concealed radio transmitter |
June 26, 1990 |
| A Browning high power pistol with a concealed radio transmitter. The wood side pieces on the hollow gun handle are recessed to hold a microphone and radio transmitter circuitry in one side piece and an antenna, including its ground plane, in the other. The usual magazine casing is modifi |
| 4107611 |
Police protection method and apparatus |
August 15, 1978 |
| This is a method and apparatus for performing such method to provide protection to police officers during the interviewing of witnesses and the investigation of matters, such protection being concerned with protection against false charges of police brutality and the like, and from u |
| 3970938 |
Method and apparatus for determining motion and speed |
July 20, 1976 |
| This is a method, and apparatus for practicing such method, wherein motion of an object may be detected remotely and relative speed of the object may be detected wherein a transmitter having an antenna is attached to the object and changes in the collector current, due to changes in the |
