Marker holder

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1997-02-14

1998-01-20

Thompson, Martie

Office supplies; artists and teachers materials

Office equipment not elsewhere specified

Holder or file

D3206, D19 35, 1906

Patent

active

D03895203

REFERENCES:
patent: D241107 (1976-08-01), Ferrara, Jr. et al.
patent: D256292 (1980-08-01), Cox
patent: D291947 (1987-09-01), Nakata
patent: D299359 (1989-01-01), Cain
patent: D365850 (1996-01-01), Romans
patent: D369160 (1996-04-01), Gotoh et al.
patent: 2793617 (1957-05-01), Palmer
patent: 4736838 (1988-04-01), Nakata et al.
A sketch of a device used by teachers to create parallel lines on a chalkboard to write musical notes for students. The device had a wooden handle and several metal fingers. Each finger held a piece of chalk. The sketch is based upon a device seen in approximately 1972.

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