As I squint at the logo at the top edge does it say something like “WHEN YOU BUY…” and then at the bottom say “YOU BUY PROTECTION” ? Some sort of advertising slogan? I’m probably wrong.
I’ve just looked through the sprayers etc on my never ending sorting of archive photos and cannot see anything remotely similar.
The attached is a similar duster by Drake & Fletcher, Maidstone, Kent. There is nothing on this machine or in the literature I have seen that suggests that they used the logo on your duster, but it may be of interest.