1970s Coal Mine Safety film

[Microgramma72]

Can anyone identify the music used in this film?
Specifically at around 0:10, 3:08 and 12:20?
Many thanks.

https://www.youtube.com/watch?v=YXD-6oGeyWM

[Retronic]

Don't recognise them but like what I hear.

[Microgramma72]

Hah! Found one of them!
Hi-Q L-167 track 2 is the piece at 12:20!
No luck with the rest yet.