From the 1950s through to the '80s, this firm manufactured electric motors.

Information Sources

• 1911-03-02 Electrical World

  THE MARCO ELECTRIC MANUFACTURING COMPANY, of Boston, Mass., has filed articles of incorporation with a capital stock of $25,000 to manufacture and deal in electrical machinery. A. H. Martin, of West Roxbury, Mass., is president and treasurer.

  We do not know if this is the same company. We have found virtually no data points between 1911 and 1959 so it seems most likely that this early company was not related to the later one that is known to have made motors.
• The 1913 edition of Documents Printed By Order of the House of Representatives of the Commonwealth of Massachusetts lists Marco Electric Manufacturing Co., of Boston, as one that was dissolved.
• A 1954 issue of the Pennsylvania Manufacturers' Association PMA Monthly Bulletin lists "Macro Electric Mfg. Corp., 3rd & Franklin Sts., Womelsdorf." This is the earliest mention of this maker we have found.
• A correspondent reports the following.

  I worked at Marco from 1973-1981. Hired as a maintenance trainee, trained as a machine tool repair/rebuilder. Marco manufactured fractional horsepower motors up to approximately 1/2 HP. They also manufactured small appliances such as mixers, hairdryers, coffee makers, box fans, electric knives, there may be more. They built 2 pole motors, shaded pole motors, universal motors, capacitor run motors. Biggest production was shaded pole motors for 20" box fans. Approximately 5000 of the shaded pole motors were built per day for the box fan industry, supplied to various customers. Marco took raw materials into the plant and manufactured most everything on site. They did the stamping for motor housings and some of the laminations, shaft and rotor grinding, diecasting the rotors, painting and winding the stators and armatures. Marco was sold around 1980-81 to a Philippine Corp. Production was moved to the Philippines, I was one of the group of technicians sent over there to help set up and start up. After 1981 there were no more manufacturing in the Womelsdorf Pa plant...