Abstract: A method of identification to determine whether a person tendering a document, such as a check or credit card, is the proper bearer of the instrument. The method involves assigning a series of letters designating various physical characteristics of the proper bearer of the instrument, such as the sex and race of the person, the color of the eyes and hair, the age, height and weight, and whether the person typically carries any of several different accessories. Letters corresponding to these various characteristics are applied to the instrument so that the person to whom it is tendered need merely compare the characteristics identified by the letters with the characteristics of the person tendering the instrument. In one modification, numerals are used to indicate age, height and weight.

Abstract: The invention is concerned with a personal alarm device which can be used for a variety of alarm purposes. In one application, the device is used to sound an alarm when there is an impending attack. This is accomplished, after cocking of the alarm, by simply releasing a removable member which falls away. In another application of the device, the alarm can be carried in a purse or other receptacle and is effective to sound the alarm if the purse is moved away from the hand of the user. In still another application, the device may be used to detect the opening of a window or the relative movement of two members which are normally in substantial engagement with each other. In still another arrangement, the device is used for detecting the withdrawal of the latch bolt of a door.The device employs an electrically-operated alarm, a battery and two switches, all mounted within a housing.