Marker/anti-marker system

Details Marker/anti-marker system Marker/anti-marker system

1974-07-10

1976-03-02

Charles, Lawrence

Coating implements with material supply

Diverse coating tools

Each with individual supply

401199, 401213, B43k 2710, B43k 500

Patent

active

039414884

ABSTRACT:
A marker system that employs an erasing unit that can couple and uncouple readily from its marker to facilitate the use of specific chemical reagents to "erase" their associated indicator dye inks without the use of non-discriminating bleaches. This erasing unit or anti-marker marker can be mounted in the marker cap, alternately in the marker barrel or used as a separate erasing unit.

REFERENCES:
patent: 1508090 (1924-09-01), Detrick
patent: 2571620 (1951-10-01), Sala

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