US PATENT SUBCLASS 368 / 310
.~.~ Of screw-threading to case center

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

276  DF  CASES {17}
309  DF  .~ With front or back details {3}
310.~.~ Of screw-threading to case center

DEFINITION

Classification: 368/310

Of screw-threading to case center:

(under subclass 309) Subject matter comprising front or back means for screwing the front or back to the central movement-holding ring.