Belfrybat

It's most likely a Japanese clone which were badged under different names.
See if these might help:

http://www.sewusa.com/Sewing_Machine...g_Machines.htm

https://groups.yahoo.com/neo/groups/...gmachines/info

Here's a manual to a universal Japanese clone:

https://purefairydust.files.wordpres...ig-zag-kab.pdf

Also PM Macybaby -- she has a sewing machine collection and might be able to help.