Heller Anti-Tank Weapon

[Petrus]

I am currently seeking any information about a Canadian-built weapon that is referred to as the Heller anti-tank rocket. The only piece of info that I have made it to gather is available at http://www.drev.dnd.ca/e/history_e.asp?page=5&lang=e.
Hopefully a member of this forum knows anything about it. Frankly speaking what I am actually interested in is EVERYTHING about the weapon from basic data to drawings and photos.

Best regards,
Piotr

PS. I am aware that the weapon that I am asking about was not a vehicle - its purpose was to destroy vehicles, so I have dared put this thread in the 'Post-war military vehicles'. And it was really post-war...