US PATENT SUBCLASS 368 / 290
.~.~.~.~ Push-button stem type

Current as of: June, 1999
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368 /   HD   HOROLOGY: TIME MEASURING SYSTEMS OR DEVICES

276  DF  CASES {17}
286  DF  .~ With protection means {4}
288  DF  .~.~ For crown or stem {1}
289  DF  .~.~.~ By waterproofing {1}
290.~.~.~.~ Push-button stem type

DEFINITION

Classification: 368/290

Pushbutton stem type:

(under subclass 289) Subject matter wherein the crown or stem is a pushbutton.