So, there is an actually 1882 patent, filed by Ignc Wangler? Considering the unabated substitution of I. & J. would Ignc Wangler have been abbreviated J.(Ignc) Wangler instead of Jan Wangler, even though the city is not proper?

Interesting to see that Ignc Wangler z Kutn Hory continued the use of the technology of his father.







Cheers,

Raimey
rse