I did see the Ronson "Cook-and Stir" machine in a Fisher lab supply catalog.They did mention that "The instrument is ideal for preparing agar solutions"The catalog was dated 1972.
in a 1970's book I have on kitchen remodeling-they show the Ronson and the Nutone in counter machines.The only "in counter" machine sold today is the "conesuer"(sorry about the spelling) blender by Blendtec.They show it on the Blendtec website. the machine is a blender-its similar to their commercial in counter models I have two Blentec machines-they are very nice and one I have-the "Titan" has a blade that is 5 in across.the machine can be used with the base that comes with it or you can remove the motor and soundhood from the base and make a cutout in your countertop and mount it there instead.
in a 1970's book I have on kitchen remodeling-they show the Ronson and the Nutone in counter machines.The only "in counter" machine sold today is the "conesuer"(sorry about the spelling) blender by Blendtec.They show it on the Blendtec website. the machine is a blender-its similar to their commercial in counter models I have two Blentec machines-they are very nice and one I have-the "Titan" has a blade that is 5 in across.the machine can be used with the base that comes with it or you can remove the motor and soundhood from the base and make a cutout in your countertop and mount it there instead.