Abstract: Provided are wireless and standalone handheld devices, such as PDAs and wireless telephones, that are configured for inputting a unique contact identifier that uniquely identifies a desired contact record, querying a central database of contact information to obtain the desired contact record, receiving the record and storing it, In various embodiments, such requests can be made directly over a wireless network or indirectly when synchronizing the handheld device with a computer connected to the Internet or to another network.

Abstract: The invention is a bridge structure for rimless glasses that includes a rear bridge portion, a front bridge portion; and fastening means for fastening the rear bridge portion to the front bridge portion. Typically, the rear bridge portion is made of plastic and the front bridge portion is made of metal, usually titanium.

Abstract: Provided is an apparatus for lifting a retractable lower safety-guard on a circular saw. In one representative implementation, an actuator is attached to the circular saw and an elongated arm is coupled to the actuator such that operating the actuator causes the elongated arm to lift. In addition, an engagement element is attached to the retractable lower safety-guard of the circular saw. When lifted, the elongated arm engages the engagement element, thereby retracting the retractable lower safety-guard of the circular saw. Preferably, the actuator is configured, and is located sufficiently close to a power switch for the circular saw, so that the actuator can be operated simultaneously with the power switch using a single hand. Also provided are retrofitting techniques for attaching such a device to an existing circular saw.