In looking at old single trigger patents, it seems a lot of inventors were set on doing a trigger for the big boys -- Remington Arms Co.'s Hammerless Double. Four by G.E. Witherell; two by E.H. Thorneley; two by E.D. Fulford; and three by Charles E. De Long. Bet they all felt bad when Remington dumped the doubles in favor of making real money with J.M. Brownings Autoloading Gun!!!
Sometime back, someone emailed me these pictures of what appears to be a Lard trigger on a triggerplate for a Remington Hammerless Double --
You mean 3 by Fulford ...It is interesting that you too wondered or assumed that because they were designed around, or perhaps simply drawn on the Rem 1894 action, that there has to be more to this. It's easy to see how their design might get the attention of Remington designers. At least from this long distance perspective, it looks like they were flat out courtin' Remington with their designs, but so far I have found nothing tangible to connect Fulford or De Long to Remington in any way (or Fulford's assignors)...but I did get to troubleshoot (clean and time) a Fulford trigger on a 94 like the one shown in 971979, so at least Fulford's design did see some degree of (aftermarket) production...But make no mistake, the death knell for the Remington double shotgun was the Flues model Ithaca...I haven't checked the production numbers in years, but If I remember right, all the top producers were forced to reckon with Ithaca's taking of lion's share of the US market...Parker responded with the Trojan, Fox with the Sterlingworth, Smith with the Fulton, and Remington with no more double production.
Allthough I can't connect DeLong or Fulford to Remington, and I can't connect Giddings either, something tells me that Giddings (of Ilion) could not have learned his craft at any other anvil other than Remington...Now those would be the guns to find.