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US Patent: 848,831
Indicator Attachment For Calipers
Patentee:
John E. Kampe (exact or similar names) - Waltham, MA

USPTO Classifications:
33/203.1

Tool Categories:
trade specific : watchmaker

Assignees:
None

Manufacturer:
John E. Kampe - Waltham, MA
Jensen Jewel Company - Waltham, MA

Witnesses:
M. A. Simms
V. H. Parker

Patent Dates:
Applied: Jun. 18, 1906
Granted: Apr. 02, 1907

Patent Pictures: [ 1 | 2 ]
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Description:
Patent is for a caliper attachment for truing, test balance wheels. Kampe was a Swedish immigrant watchmaker who also made his own tools for sale. Also see2039226 for evolution of this tool.

Sample marked, "J.E. Kampe , Waltham ,Mass." With Patent Date on Attachment.Other samples marked with, "J.E.Kempe,Waltham,MA and MFG by Jensen."

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