There are 3 Eaa BIPLANE aircraft on the U.S. registry that TailWiki has a page for. Every one is built from the public FAA record — year, serial, engine, home base, and registration history — and owners and pilots add photos, trips, and stories on top. The ones listed here were built between 1967 and 1970.
N5134
1970 Eaa BIPLANE
Fort Worth, TX
N30121
1968 Eaa BIPLANE
St Louis, MO
N8721E
1967 Eaa BIPLANE
Corapeake, NC