This is the common name thread for sound guy P. O. Pettersson / P.O. Pettersson / P O Pettersson / Per-Olof Pettersson
CLT:
"P. O. Pettersson" is credited in the following 11 titles (34 profiles)
"P.O. Pettersson" is credited in the following 3 titles (9 profiles)
"P O Pettersson" is credited in the following 1 titles (1 profiles)
"Per-Olof Pettersson" is credited in the following 16 titles (24 profiles)

P. O. Pettersson (3 confirmed, 5 unconfirmed, 3 invalid):
Face of Fire
Vargtimmen / Hour of the Wolf (confirmed by ninso4)
I dimma dold / Hidden in the Fog / In the Mist
Nattlek / Night Games
Persona
För att inte tala om alla dessa kvinnor / All These Women
Sommarnattens leende
Stimulantia
Vita frun / Lady in White
Bara en mor / Only a Mother (confirmed by ninso4)
På en bänk i en park / On a Bench in a Park (confirmed by ninso4)

P.O. Pettersson (2 confirmed, 1 invalid):
För att inte tala om alla dessa kvinnor / All These Women
Sommarnattens leende (confirmed by ninso4)
Persona (confirmed by ninso4)

P O Pettersson (1 confirmed):
För att inte tala om alla dessa kvinnor / All These Women (confirmed by ninso4)

Per-Olof Pettersson (11 unconfirmed, 4 invalid):
Bara en mor / Only a Mother
Du är mitt äventyr / You Are My Adventure
Flottans överman
Flyg-Bom / Bom the Flyer
Greven från gränden / The Lord from the Lane
Himmel och pannkaka / Heaven and Pancake
Sommarnattens leende
Landstormens lilla Lotta
På en bänk i en park / On a Bench in a Park
Persona
Sjunde himlen / Seventh Heaven
Smålänningar
Soldat Bom / Private Bom
Stöten / The Heist / Blueprint for a Million
Wild West Story