Letter writers portifolio

Details Letter writers portifolio Letter writers portifolio

1992-10-23

1993-09-21

Burke, Wallace R.

Office supplies; artists and teachers materials

Paper or pasteboard for writing or printing

Envelope

Patent

active

D03396045

REFERENCES:
patent: D13464 (1882-12-01), Butler et al.
patent: D287735 (1987-01-01), Leyland
patent: 488005 (1892-12-01), Griffith
patent: 763797 (1904-06-01), Rueve, Jr.
patent: 913473 (1909-02-01), Draemel
patent: 1346298 (1920-07-01), Congdon
patent: 4802618 (1989-02-01), Seto et al.

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