SoLockManager(3) on Linux
The text 3709466d3f5d, as Debian 7 (Wheezy) shipped it.
The SoLockManager is a defunct software license lock mechanism. This is just a dummy implementation of the TGS Inventor class used to provide a license locking mechanism. Since Coin can be used without any royalty fees or client-site license locks, no such mechanism is needed.