Biorhythmic slide rule

Details Biorhythmic slide rule Biorhythmic slide rule

1978-02-17

1980-10-28

Hix, L. T.

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Calculators

Bar

235 85FC, G06G 106

Patent

active

042309360

ABSTRACT:
A biorhythmic slide rule which includes three separate movable slides wherein each slide includes different biorhythmic indicia. The slides are positionable in an overlying relationship with the indicia of all three of the slides being observable permitting a coordinated assemblage of the indica.

REFERENCES:
patent: 2434306 (1948-01-01), Wood
patent: 2594857 (1952-04-01), Boos
patent: 3853265 (1974-12-01), Kunert
patent: 4035616 (1977-07-01), Piringer

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