Demagnetizers for medical instruments; Magnetic compasses; Magnetic gyrocompasses; magnetic tools, namely, handheld demagnetizer pickup stick in the nature of demagnetizers for drone and unmanned aerial vehicle (UAV) compasses, incorporated demagnetizer tool in the nature of demagnetizers for drone and UAV compasses, degaussing tool in the nature of degaussing magnetizers, degaussing demagnetizers, demagnetizers and electronic degaussing units for digital compasses, electronic degaussing unit...