Variable length columns

Details Variable length columns Variable length columns

1986-06-27

1987-09-15

Ramirez, Ramon O.

Supports

Stand

Standard type

108144, 248157, 248409, 297345, F16M 1100

Patent

active

046934421

ABSTRACT:
A variable length support column for mounting a seat on a base to form a variable height seat comprises an elongate tube and a rod longitudinally slideable together or apart to shorten or to extend the column;

REFERENCES:
patent: 1589847 (1926-06-01), Hansen
patent: 3606234 (1971-04-01), Prescott
patent: 3737136 (1973-06-01), Snurr
patent: 3880096 (1975-04-01), Kaplan
patent: 4379540 (1983-04-01), French
patent: 4394001 (1983-07-01), Wisniewski
patent: 4526334 (1985-07-01), Rantakari
patent: 4595237 (1986-06-01), Nelsen
patent: 4598892 (1986-07-01), Franckowiak et al.
patent: 4613106 (1986-09-01), Tornero

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