Date of birth	1890
Date of death	1969
Field of Activity	keräys
Other Forms of Name	Väisänen, Armas Otto (1890-1969) Väisänen, Armas Otto Aapo (1890-1969)
Identifiers	0000000109016146 (isni) http://urn.fi/URN:NBN:fi:au:finaf:000068497 (finaf)