I think CCL owns the rights to that name, I have an old box here from the 1960's for a model 436N Padlock which has Sesamee on it and a Corbin logo. It also says Corbin Cabinet Lock Division, The American Hardware Corp, New Britain Connecticut. That must be what CCL stands for, and I didn't correlate that until just now =)
EDIT: the box had some nice instructions inside, I just took a photo for ya'll

Cool find Gordon, I need to visit my local lockie soon and poke around.
Squelchtone