US PATENT SUBCLASS 242 / 375.2
.~.~.~ Pretensioned spring attachment
Current as of:
June, 1999
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242 /
HD
WINDING, TENSIONING, OR GUIDING
370
DF
REELING DEVICE
{11}
371
DF
.~ With spring motor {12}
375
DF
.~.~ Spring attachment {3}
375.2
.~.~.~ Pretensioned spring attachment
DEFINITION
Classification: 242/375.2
Pretensioned spring attachment:
(under subclass 375) Subject matter in which stress is applied to the spring prior to connecting the spring to the elongated material or the spool for the material.