Clock having a device for planning the sex of a child according

Details Clock having a device for planning the sex of a child according Clock having a device for planning the sex of a child according

1990-08-21

1991-10-15

Miska, Vit W.

Horology: time measuring systems or devices

Combined with disparate device

368 28, 128738, G04B 4700, G04B 1924, A61B 1000

Patent

active

050580841

ABSTRACT:
In a clock, a device for planning the sex of a child according to the time selection method exhibits differently marked display sections (3, 4 and 5), relative to a display starting position (2), for labeling the days of fertility and the days of infertility in a cycle and a limited cycle variation range. Within the display section for the days of fertility (4), clearly distinguishably marked day position fields (G and B) are provided which, for cycle lengths of 27 to 30 days, serve as an indication of the days of probability for conceiving a boy or a girl. The counting and display of the days of probability by the cycle pointer (1) occurs from the respective first day of a new menstruation. Correspondingly, the display element (1, 11) can be adjusted to the starting position (2).

REFERENCES:
patent: 3964674 (1976-06-01), Van der Gaast
patent: 4151831 (1979-05-01), Lester
patent: 4410797 (1983-10-01), Hatzold
patent: 4527906 (1985-07-01), Jezbera
patent: 4788984 (1988-12-01), Marsik

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