Slevonic Animacije-Studio is the company founded by Zlatko Pavicic, of Professor Balthazar-famed with Zlatko Girgic.

1st Logo (1968-1976)
Logo: We see on a black background a white semicircle with a 5-squared grid, and it's lower line being more larger than the others. Below it it's the text "Slevonic Animacije-Studijo". Below this are the Zagreb Film and the Windrose Dumont Time logos, and the text "Predvijeti". The p has two legs and the I has an extra line.
FX/SFX: None.
Cheesy Factor: The semicircle looks more than a "semi-globe" (a globe being cutted into one), the line looks cheap and it should have been used animation upon it.
Music/Sounds: A 7-note that repeats ascending twice, followed by a drumroll and 2 bombastic notes.
Availability: Seen on Seasons 1-3 of Professor Balthazar, but mostly rare.
Scare Factor: Low. Considering that the darkness and fanfare can get some people, this is mostly harmless

2nd logo (1976-1978)
Logo: We see on a blue background the text "SLEVONIC" on an abstract font, with their E being only three horizontal lines. Over the top of it there is a line and the text "Sprivijet-Akostolet". Over the left of the text we see an abstract eagle on a neon circle, all in white-drawn. The texts "Animacije Studio" and "S ponosom predstavilja" appear over the abstract text. On the bottom of the screen, we see the copyright from Zagreb Film.
FX/SFX: None.
Cheesy Factor: As the previous logo, it should have been used animation upon it and the eagle does look much like a beaked mammoth.
Music/Sounds: Same as before, but renditioned better.
Availability: Seen on their cartoons of their time, such as Krivoji, Scheki Balamaski, Ridge of the Summer and Season 4 of Proffessor Balthazar.
Scare Factor: Absolutely none. The cheesiness of this logo is far from being scary, also this may be one of the most lamest logos ever.