Electronic tape measure with comparison capabilities

Details Electronic tape measure with comparison capabilities Electronic tape measure with comparison capabilities

1977-11-23

1980-01-29

Haroian, Harry N.

Geometrical instruments

Area integrators

Electrical

235 92DN, G01B 312

Patent

active

041853903

ABSTRACT:
In an electronic tape measure wherein the results of measurements are visually displayed on a display through the use of a counter, there is provided a keyboard unit for introducing a specific quantity into the tape measure. It further includes alarm means for providing an alarm signal when a tape is drawn in an amount to correspond to the specific quantity previously loaded into the counter via the keyboard unit.

REFERENCES:
patent: 3780440 (1973-12-01), Taylor
patent: 3965340 (1976-06-01), Renner
patent: 4006472 (1977-02-01), Greene
patent: 4031360 (1977-06-01), Soule
High Speed Counters by William Foley Product Engineering, 12/21/64, pp. 61-66.

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