US PATENT SUBCLASS 112 / 97
.~.~.~.~ Thread tension

Current as of: June, 1999
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112 /   HD   SEWING

2  DF  SPECIAL MACHINES {38}
78  DF  .~ Embroidering {4}
83  DF  .~.~ Horizontal needle {6}
93  DF  .~.~.~ Stitch forming {4}
97.~.~.~.~ Thread tension

DEFINITION

Classification: 112/97

Includes tension mechanisms for the needle-thread.

(1) Note. For tensions, generally, see this class, subclass 254, and indented subclass.