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US Patent: 1,001,278
Poising Calipers
Watchmaker's Poising Calipers
Patentee:
John E. Kampe (exact or similar names) - Waltham, MA

USPTO Classifications:
33/203.1, 81/6, 968/762, 968/DIG1

Tool Categories:
trade specific : clockmaker

Assignees:
None

Manufacturer:
Jensen Jewel Company - Waltham, MA

Witnesses:
Dorothy von Kamecke
Austin T. Jordan
L. B. James
O. B. Hopkins

Patent Dates:
Applied: Mar. 27, 1911
Granted: Aug. 22, 1911

Patent Pictures:
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Description:
These calipers feature jeweled points for wear protection, and an unusual adjustment mechanism. Kampe was a Swedish immigrant watchmaker who also made his own tools for sale.

Sample marked, "J.E. Kampe , Waltham ,Mass." on one side. The other side is marked"MFRD by Jensen"

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