He applied for emigration to Shanghai in Vienna in 1939:
Friederich Lasus (1909 - d.) - Genealogy (geni.com)
https://www.mappingthelives.org/bio/34f3ed17-e6b6-403b-b823-9f672c266d58
Wife: Johanna Lasus
https://www.chinafamilies.net/refugees/5474-lasus-johanna/
Daughter: Susan Lasus
https://www.chinafamilies.net/refugees/5476-lasus-susan/
Daughter: Erka Lasus
https://www.chinafamilies.net/refugees/5475-lasus-erka/
Mother: Perl Lasus
https://www.chinafamilies.net/refugees/5477-lasus-perl/
Brother: Erich Lasus
See:
[CLI Part 32] 132677090 Erich Lasus - Dokumente - Talk in the Forum of the Arolsen Archives (arolsen-archives.org)