Ladder
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 29, 1985
Grant Date -
N/A
app pub date -
Dec 30, 1983
filing date -
Dec 23, 1983
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A ladder wherein a plurality of rounds are pivotally and turnably mounted to and between the right stanchion and the left stanchion at proper spaces, and supporting arm levers are detachably fixed from both stanchions to the round by bolts or machine screws.
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Cited Art Landscape
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