Dental chair
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 26, 1984
Grant Date -
N/A
app pub date -
May 18, 1981
filing date -
May 16, 1980
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A dental chair has its backrest connected to the seat by a scissor linkage arrangement which effects the moving together of the contiguous portions of the backrest and seat concurrently with movement of the backrest from an upright to a reclined position.
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