From Norman Brooks, author of the article on the Cremonaphone:
Here is some information about the Standard Phonograph Accessories and Supply Co., from Montreal. The information is taken from their 32 page parts catalogue from 1928 as well as a dedicated fold out brochure about the Super Phonic. All information seems to indicate that this company manufactured as well as distributed this line.
These scans are from the gramophone brochure.
These scans are taken from the parts catalogue of 1928:
A Super-phonic for sale on FB Marketplace in February 2023.
A Super-phonic portable in Montreal for sale in Kijiji in June 2023.