It's been a couple years and a few more brands, so I thought I'd update the New Britain sourced ratchet brand list I've found over the years.
The updated list (as of 1-3-2017) of 32 tool brands with ratchets either produced by or using patents/designs originally by New Britain Machine.
(K-Kilness, F-Fors, C-Costello, and/or VE-Very Early patents/designs):
American Forge - K
Billings - F
Blackhawk - F,K
Bluegrass - F,K
Champion Sparkplug - K
Craftsman - VE,C,F
Crescent - K
Fairmount - F
Filson - F
Giller - K
Husky - C,F,K
JS - K
KR Wilson - K
Litton - K
Mac - K
Master Mechanic - K
Matco - K
Mustang - F,K
NBM - K
New Britain - C,F,K
None Better - C,F
OTC - K
Penncraft - K
Precision-Bilt - F
Proto Challenger - K
SP 45 - K
Sparta - K
Thorsen - K
"unbranded" - K
Vlchek - VE
Wardmaster - F
Wix - F
The two brands I currently don't have one or more of are Billings and KR Wilson. I've seen - and missed out on - at least two Billings in 1/4" drive, and pics and comments on KR Wilson are available over at Papaws and here (but now I can't find the right threads...)
It seems I've been adding a brand or few each year for the past several years to the list.
Two "new" brands that I've fished out of the 'bay since the last pic post several pages earlier:
Wix & Wardmaster