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US Patent: 730,513
Pyrometer
Patentee:
Eugene Childs (exact or similar names) - Boston, MA

USPTO Classifications:
356/43, 359/888

Tool Categories:

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Mar. 14, 1901
Granted: Jun. 09, 1903

Patent Pictures:
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