Swimming pool

Details Swimming pool Swimming pool

1974-04-01

1976-02-03

Artis, Henry K.

Baths, closets, sinks, and spittoons

Dry closets

With heating meas

187 872, 187 18, E04H 316, E04H 318

Patent

active

039356000

ABSTRACT:
An adjustable bottom for swimming pools wherein the raising and lowering mechanism is self-locking including positive and gradual movement in the raising and lowering of the adjustable bottom including means outside the pool for operating the mechanism.

REFERENCES:
patent: 900237 (1908-10-01), Trent
patent: 1727182 (1929-09-01), Smith
patent: 2598625 (1952-05-01), Wallace
patent: 2624535 (1953-01-01), Bollhoefer
patent: 2890908 (1959-06-01), McLean
patent: 2975868 (1961-03-01), Long
patent: 3413661 (1968-12-01), Ross
patent: 3670343 (1972-06-01), Gansloser

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