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US Patent: 2,416,772
Pilotage Rotameter
Patentee:
Franklin A. Reece - Brookline, MA

USPTO Classifications:
235/61B, 235/61D, 235/61E, 235/61S, 33/773

Tool Categories:
layout tools : measurement gauges

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
none listed

Patent Dates:
Applied: May 17, 1943
Granted: Mar. 04, 1947

Patent Pictures:
USPTO pdf tiff
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