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US Patent: 1,173,460
Electric switch
Patentee:
Carl A. Palmgren (exact or similar names) - Chicago, IL

USPTO Classifications:
200/38R

Tool Categories:
electrical devices : electric switches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
A. J. Drew
D. V. Medalie

Patent Dates:
Applied: Jul. 02, 1915
Granted: Feb. 29, 1916

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for Palmgren Steel Products, Inc.
Description:
This patent covers a timer-switch for controlling a pyrometer.

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