Writing instrument with water level indicator

Details Writing instrument with water level indicator Writing instrument with water level indicator

1990-11-05

1993-03-02

Bratlie, Steven A.

Coating implements with material supply

Solid material for rubbing contact or support therefor

Combined

401195, 434166, 40334, B43K 2900, B43K 2908

Patent

active

051903881

ABSTRACT:
A writing device including a means for observing and measuring the inclination of the device in order to teach proper penmanship to pupils using the device at a young and formidable age. The writing device includes an oil-filled vessel with lines imprinted thereon whereby the imprinted lines of a container match up with the angle of the oil at the optimum inclination at which to hold the writing instrument.

REFERENCES:
patent: 2029877 (1936-02-01), Knudsen
patent: 2215084 (1940-09-01), Neal
patent: 2237883 (1941-04-01), Lipie
patent: 2251640 (1941-08-01), Skrainka
patent: 2591874 (1952-04-01), Ritchie
patent: 2745198 (1956-05-01), Nelson
patent: 2866440 (1958-12-01), Green

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