Principal permitted uses on land and in buildings in the M-1 District shall be as follows:
A.
Public purpose uses.
B.
Laboratories of an experimental, research, development or testing nature which carry on processes within completely enclosed buildings and which do not produce noticeable noise, vibration, smoke, dust, odors, heat, glare or hazardous or toxic waste or materials.
C.
Light manufacturing and assembly or treatment of products from previously prepared materials, including art, metal, and architectural fabrication, but excluding the synthesis and/or storage of chemical or flammable products.
D.
Retail trade and retail services, excluding sales, distribution, and storage of chemicals, flammable materials and fuel products, and excluding drive-throughs.
E.
Offices, including general offices, contractor's offices, medical offices, and professional offices.
F.
Restaurants and eating and drinking establishments, non-drive-through.
G.
Art galleries.
H.
Personal services.
I.
Recreational instruction.
J.
Indoor commercial recreation/fitness club.
K.
Business services.
L.
Mixed-use buildings comprised of any of the above permitted uses.