Intermec CK31 User Manual page 16

Before You Begin
Permission to use, copy, modify, distribute and sell this software
and its documentation for any purpose is hereby granted
without fee, provided that the above copyright notice appear in
all copies and that both that copyright notice and this
permission notice appear in supporting documentation. Dr John
Maddock makes no representations about the suitability of this
software for any purpose. It is provided "as is" without express or
implied warranty.
xvi CK31 Handheld Computer User's Manual