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US Patent: 66,796
Improvement in Instruments for Laying out Stair-Railings
Patentee:
Alexander Clow - Erie, PA

USPTO Classifications:
33/29

Tool Categories:
trade specific : carpenter

Assignees:
Alexander Clow - Erie, PA
John Hendry - Erie, PA

Manufacturer:
Not known to have been produced

Witnesses:
John Graham
John Hendry

Patent Dates:
Granted: Jul. 16, 1867

Patent Pictures: [ 1 | 2 | 3 ]
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Description:
This device can be adapted for use in laying out handrails for elliptical stairways.

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