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US Patent: 30,914
Collimator
Patentees:
George N. Fairchild - New York, NY
Thomas Joyce - New York, NY

USPTO Classifications:
33/290, 33/348, 356/248

Tool Categories:
layout tools : levels : inclinometers

Assignees:
None

Manufacturer:
Unknown

Witnesses:
M. M. Simington
L. W. Bendre

Patent Dates:
Granted: Dec. 18, 1860

Patent Pictures: [ 1 | 2 ]
USPTO pdf tiff
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Description:
An example appeared in a Martin Donnelly auction marked "Pat. Appl'd for". Check out the last page of the patent. It appears that Mr. Joyce signed the patent with an X. The words "his mark" surround the X.

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