Building units and construction elements – Stair – ladder – scaffold – or similar support – Element or attachment
Design Patent
2007-11-20
2007-11-20
Clark, Doris (Department: 2914)
Building units and construction elements
Stair, ladder, scaffold, or similar support
Element or attachment
Design Patent
active
29264492
CLAIM:
The ornamental design for a ladder support, as shown.
REFERENCES:
patent: 3349870 (1967-10-01), Lieblein
patent: D254630 (1980-04-01), Aberer et al.
patent: D258839 (1981-04-01), Broyles
patent: 4442920 (1984-04-01), Gronbeck et al.
Eriksson Per-Olof
Gustafsson Ove
Clark Doris
Telesteps AB
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