Instrument for facilitating the calculation of equivalent values

Details Instrument for facilitating the calculation of equivalent values Instrument for facilitating the calculation of equivalent values

1976-05-21

1977-11-15

Grieb, William H.

Registers

Coded record sensors

Particular sensor structure

235 70C, G09B 1902, G06G 106, G09B 128

Patent

active

040579123

ABSTRACT:
An instrument for facilitating the calculation of equivalent values includes a plate bearing symbols representing units and dimensions, the plate having a window in which a movable pointer is located. The pointer is movable from a first position representing a first set of units and dimensions to a second position representing an equivalent set of units and dimensions.

REFERENCES:
patent: 3790074 (1974-02-01), Zemanek et al.
patent: 3837569 (1974-09-01), Bradbury et al.

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