Office supplies; artists and teachers materials – Office equipment not elsewhere specified – Holder or file
Patent
1990-07-31
1992-07-21
Walsh, Donald P.
Office supplies; artists and teachers materials
Office equipment not elsewhere specified
Holder or file
D19 86, D19 95
Patent
active
D03281035
REFERENCES:
patent: D137950 (1944-05-01), Howard
patent: D161752 (1951-01-01), Hart
patent: D171758 (1954-03-01), Henning et al.
patent: D201732 (1965-07-01), Bunn et al.
patent: D212264 (1968-09-01), Rome et al.
patent: D261090 (1981-10-01), Kapolas
patent: D289253 (1987-04-01), Super
patent: 3533512 (1970-10-01), Sherwer
patent: 4333573 (1982-06-01), Holoubek
Woodward and Lothrop, Autumn 1977, p. 42 see circled memo holder, lower left.
DePaul L. A.
Thompson Martha
Walsh Donald P.
Westinghouse Electric Corp.
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