US PATENT SUBCLASS 5 / 256
.~.~.~.~ Springs, spiral
Current as of: June, 1999
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| 5 / | HD | BEDS |
|
| 131 | DF | BEDSTEADS {6} |
| 400 | DF | .~ Having bottom {9} |
| 246 | DF | .~.~ Of springs {3} |
| 254 | DF | .~.~.~ Elements {10} |
| 256 |  | .~.~.~.~ Springs, spiral |
DEFINITION
Classification: 5/256
(under subclass 254) Devices comprising spiral units having some peculiarities of structure of conformation, as twisting, doubling, angularity, varying thickness of wire, other than round, etc.
SEE OR SEARCH THIS CLASS, SUBCLASS:
268, for twin or continuous springs.