US PATENT SUBCLASS 112 / 291
.~.~ Upper and lower threads

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


112 /   HD   SEWING

270  DF  ELEMENTS {21}
285  DF  .~ Thread cutting, severing or breaking {11}
291.~.~ Upper and lower threads {1}
292  DF  .~.~.~> Single cutter

DEFINITION

Classification: 112/291

Upper and lower threads:

(under subclass 285) Devices designed to cut a thread emanating from the upper surface or plane of the work and a thread emanating from the lower surface or plane of the work.