Abstract: There is disclosed a calculator adapted to determine optimum fertility time periods for a female, formed by a first scale divided into 365 equal units, each unit assigned a day for each month of a full calendar year, a second scale positioned in operative relation to the first scale, the second scale including a first information segment formed by a series of 15 equal units, each unit representing a day in a menstrual cycle and ranging between 20 such days in a cycle and 35 days in a cycle, and a second information segment positioned a predetermined distance forward of the first information segment, the second information segment comprising the optimum fertility indicator segment and constructed by measuring a time period two days prior to and two days subsequent to the day of ovulation, the optimum fertility indicator segment constructed in the form of a box having a total of eight equal units from end to end, the center unit representing the point of ovulation, and the two markings measured therefrom each b

Abstract: There is disclosed a calculator adapted to determine optimum monthly fertility time periods of a female formed by a first scale divided into 365 equal units, each unit assigned a day and each month of a full calendar year, a second scale positioned in operative relation to the first scale, the second scale including a plurality of information segments, each of the information segments being sized to correspond with a different menstrual cycle length calculated by the time period between the first day of successive menstrual cycles and ranging between 23 cycle days and 35 cycle days, each of the information segments being spaced from the next adjacent information segment by a spacer segment, each of the spacer segments being of equal size, and each information segment further provided with an optimum fertility indicator segment sized in accordance with a time period equal to two days prior and two days following ovulation, whereby the manipulation of the second scale by placing the indicator indicating the fir

Abstract: An identifying tag affixed to a key wherein the identifying tag has a surface area which receives the identifying indicia. The identifying tag has opposite ends with locking or latching members so that the opposite ends can be fastened together. The identifying tag is dimensioned so that it can pass through at least two receiving holes in the key and then have the latching members engaged so that the identifying tag is securely retained to the key. The identifying tag is generally made from a flexible material so that the tag can be easily manipulated by the user to pass through the receiving holes and then latched.

Abstract: There is disclosed an improved clasp formed by a clasp bar including a pair of clasp arms extending outwardly from a central junction point, each of the clasp arms terminating in an outer end, the opposed outer ends being provided with cooperating lock means such that the clasp bar may be utilized to encircle a substantially flexible article and the lock means manipulated to encircle and lockingly engage the flexible article within the confines formed by the clasp arms and central junction point and the locking means. Various of the embodiments disclose a clasp bar wherein the clasp arms are formed of a resilient material and may be biasingly urged into touching contact in order to permit the lock means to cooperatively engage one another thereby to encircle and lock the flexible article therein.

Abstract: There is disclosed an improved paper clip for retaining two or more pieces of paper together formed by a continuous U-shaped body having an upper wall and a lower wall being spaced apart a distance and joined at one end by a junction portion, the upper wall having a cut-out portion formed therein and having one surface thereof including an inclined surface formed therein, spring means mounted on the upper wall and recessed within the cut-out portion the spring means further including an inclined section formed integrally therewith and positioned in cooperating relation with the inclined surface of the cut-out portion such that the inclined section frictionally engages against the inclined surface, the spring means including paper piercing means formed thereon and extending downwardly therefrom in the direction of the lower wall, the spring means constructed to have an open position when retracted and a closed position when depressed, the lower wall having a receiving slot formed therein and positioned in line