Casing for a writing instrument

Details Casing for a writing instrument Casing for a writing instrument

1990-11-15

1992-09-15

Holtje, Nelson C.

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Marking instrument

D19 43, D19 50, D19 56, D19 57

Patent

active

D03294609

REFERENCES:
patent: D23502 (1894-07-01), McIntyre
patent: D87378 (1932-07-01), Back
patent: D101130 (1936-09-01), Lynn
patent: D179615 (1957-01-01), Spatz
patent: D188575 (1960-08-01), Zierhut
patent: D223307 (1972-04-01), Nockolds
patent: D284582 (1986-07-01), Bruhn
patent: D307035 (1990-04-01), Petterson

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