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US Patent: 620,609
Motor
Patentees:
Edwin S. Pillsbury (exact or similar names) - St. Louis, MO
Ferdinand Schwedtmann (exact or similar names) - St. Louis, MO

USPTO Classifications:
200/80R, 310/167, 310/237, 310/246, 310/40R, 310/90

Tool Categories:
electrical devices : electric motors

Assignees:
None

Manufacturer:
Century Electric Co. - St. Louis, MO
Wagner Electric Mfg. Co. - St. Louis, MO

Witnesses:
F. R. Cornwall
Ralph Kalish

Patent Dates:
Applied: Mar. 18, 1898
Granted: Mar. 07, 1899

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for Wagner Electric Corp.
Vintage Machinery entry for Century Electric Co.
Description:
Seen on a Wagner single-phase 3/4 horse motor with patent dates ranging between 1888-09-11 to 1910-05-31. Also seen on a Century Electric motor that also had the date for patent 718,518.

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