Knob cylinder lock
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United States of America Patent
Stats
-
Nov 10, 1992
Grant Date -
N/A
app pub date -
Aug 14, 1991
filing date -
Aug 14, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A retrofit knob cylinder has a cross-shaped slot on the rear of the cylinder plug and a cross-shaped opening through a plug retainer so that a number of different tail pieces may be assembled to the plug and extend through the opening and may be positioned either horizontally or vertically depending on which portion of the cross slot they are assembled in.
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