Building units and construction elements – Stair – ladder – scaffold – or similar support
Design Patent
2002-02-01
2002-10-08
Clark, Doris (Department: 2914)
Building units and construction elements
Stair, ladder, scaffold, or similar support
Design Patent
active
D0464144
CLAIM:
The ornamental design for a portable platform, as shown and described.
REFERENCES:
patent: 3094848 (1963-06-01), Albrecht
patent: D329903 (1992-09-01), Craig
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