Erasable door knob tag with pen holder

Details Erasable door knob tag with pen holder Erasable door knob tag with pen holder

1997-11-17

1999-04-27

Holtje, Martie

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Writing or drawing surface, e.g., blackboard, drawing board,...

D20 42, D19 83, 1906

Patent

active

D04088557

REFERENCES:
patent: D142775 (1945-11-01), Rebaylio
patent: D160746 (1950-10-01), Schumann
patent: D179993 (1957-04-01), Waxman et al.
patent: D316871 (1991-05-01), Woods
patent: D316877 (1991-05-01), Mitchell
patent: D329468 (1992-09-01), Hatt
patent: D390882 (1998-02-01), Ho
patent: D394882 (1998-06-01), Ho
patent: 632155 (1899-08-01), Smith
patent: 1212349 (1917-01-01), Hardy
patent: 2758723 (1956-08-01), Morris et al.
patent: 4862617 (1989-09-01), Cooke, Jr. et al.

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