Dobry den' Nadia. Jak sa mate?
I am not an expert on the Slovak inventor S'tefan Banic' but I believe that you are one war too early. According to stories I read long ago in "Jednota" the patents that Stefan Banic' assigned to the US government before he returned to Slovensko were used in World War II parachutes.
The great number of Allied airplane pilots that were l killed in WWI can be attributed, in part, to the fact that none were given parachutes, although parachutes were available and were standard equipment for observers who had to go up in balloons.
I tried to look up the date for the patent that Banic supposedly got but the US Patent Office web site I didn't give me anything.
"Prva Katolicka Slovenska Jednota". This organization has a library in Middletown PA. The editor of the Jenota newspaper can probably connect you with the various Slovak historians in the US and Canada.
The Slovak historians I know of are;
Martin Votruba at the University of Pittsburgh
Michael Kopanic, academic address unknown
Mark Stolarik at the University of Toronto.
None of this is very convenient, I know.
You might also try;
http://login.prospero.com/dir-login/...F%2Fforums%2Ed
This web site is mainly about Slovak genealogy but many of the contributors are knowledgeable about other things Slovakian. One contributor, Mark Sabol lives in the D.C. area.
do videnia,
Charlie