Yes, I'm a Browning HiPower fan. He finally did get it right with this design.
I have a Colt 1911 and a Browning Hi Power. Not seen a Dieudonne Saive Hi Power.
Might boil down to who owns (owned) the patents. Colt and Browning? I think Browning was happy when Colts patents ran out on his 1911 so he could incorporate many his design features into his new P35.
My take.