Letter tray riser

Details Letter tray riser Letter tray riser

1990-07-09

1992-07-21

Walsh, Donald P.

Office supplies; artists and teachers materials

Office equipment not elsewhere specified

Element or attachment

D19 92, D19 65

Patent

active

D03281043

REFERENCES:
patent: D146259 (1947-01-01), Kebler
patent: D188832 (1960-09-01), Staebell
patent: D261904 (1981-11-01), Polhemus
patent: 3648849 (1972-03-01), Harris et al.
patent: 3838840 (1974-10-01), Urban
patent: 4074810 (1978-02-01), Juergens et al.
patent: 4353470 (1982-10-01), Polhemus et al.
patent: 4534475 (1985-08-01), Mayo
patent: 4785939 (1988-11-01), Huerto et al.
patent: 4863042 (1989-09-01), Rohner
patent: 4887724 (1989-12-01), Pielechowski et al.
patent: 4907703 (1990-03-01), Alger et al.
Pages 22, 23, 24 and 27, Eldon Office Products, P.O. Box 22667, Long Beach, Calif. 90801-5667. Publication date Jan. 1990.
Pages 4, 5 and 6, Rubbermaid Commercial Products Inc., 3124 Valley Avenue, Winchester, Va. 22601. Publication date 1986.

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