US PATENT SUBCLASS 81 / 7.5
.~ Mainspring winders

Current as of: June, 1999
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6  DF  WATCHMAKERS' {3}
7.5.~ Mainspring winders

DEFINITION

Classification: 81/7.5

(under subclass 6) Devices, for (1) winding the mainspring of a watch or clock, in situ, or (2) winding and holding the mainspring and trans-ferring it into the mainspring-barrel.

SEE OR SEARCH THIS CLASS, SUBCLASS:

54+, for motor driven wrenches.

122+, for watch keys.

SEE OR SEARCH CLASS

185, Motors: Spring, Weight, or Animal Powered, 39+, for spring motors combined with winding means therefor.