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US Patent: 1,426,735
Method and Apparatus for Recording Pressure
Patentees:
William F. Hendry (exact or similar names) - New York, NY
Charles E. Reddig (exact or similar names) - Richmond Hill, Queens County, NY

USPTO Classifications:
340/870.16, 346/107.1, 346/4, 73/114.18

Tool Categories:
industrial tools : pressure indicators
propulsion and energy : internal combustion engines : internal combustion engine indicators
industrial machines : industrial recording apparatus

Assignees:
Western Electric Co. - New York, NY

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Dec. 16, 1919
Granted: Aug. 22, 1922

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for Western Electric Co.

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