Title:
Memory swivel for swivel chair
United States Patent 3385550


Inventors:
Frank, Doerner
Application Number:
US58274666A
Publication Date:
05/28/1968
Filing Date:
09/28/1966
Assignee:
DOERNER PRODUCTS CO LTD
Primary Class:
Other Classes:
108/142, 297/344.21
International Classes:
A47C3/24
View Patent Images:
US Patent References:
2691407Gravity seat return1954-10-12
1897676Stool1933-02-14
1895226Stool seat positioning means1933-01-24