filtration

Sign Manufacturing

Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals, Analytical Laboratory Instrument Manufacturing, Surgical and Medical Instrument Manufacturing

Surgical and Medical Instrument Manufacturing

All Other Miscellaneous Manufacturing

Sign Manufacturing

All Other Miscellaneous Fabricated Metal Product Manufacturing, Aircraft Manufacturing, Aircraft Engine and Engine Parts Manufacturing, Other Aircraft Parts and Auxiliary Equipment Manufacturing, All Other Transportation Equipment Manufacturing

Musical Instrument Manufacturing

Construction Machinery Manufacturing, Mining Machinery and Equipment Manufacturing, Sporting and Athletic Goods Manufacturing, Department Stores (except Discount Department Stores), Discount Department Stores

All Other Miscellaneous Manufacturing, All Other Miscellaneous Schools and Instruction

PORTLAND

Dental Laboratories

BANGOR

Surgical Appliance and Supplies Manufacturing, Medical, Dental, and Hospital Equipment and Supplies Merchant Wholesalers, All Other Health and Personal Care Stores, Shoe Stores

RUMFORD

Surgical Appliance and Supplies Manufacturing