Combined writing board and pen

Office supplies; artists and teachers materials – Office equipment not elsewhere specified – Holder or file

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D19 36

Patent

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D02868946

REFERENCES:
patent: D226040 (1973-01-01), Beerli
patent: D260536 (1981-09-01), Saoty
patent: D273002 (1984-03-01), Schafer
patent: D276479 (1984-11-01), Mori
patent: 3568260 (1969-05-01), Roberts
patent: 4157152 (1979-06-01), Blastic
Hong Kong Enterprises, vol. 2, 1982, p. 53, Pen and Pen Holder #R1-601, located on right side of page.
Grammes Metal Products, 10/1942, p. 51, Clip #5342, located in upper left of corner.

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