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US Patent: 1,237,470
Hygrostat
Patentee:
Willis H. Carrier (exact or similar names) - Buffalo, NY

USPTO Classifications:
200/61.06, 200/DIG.014, 200/DIG.04, 236/78A, 236/78R, 236/DIG.001, 236/DIG.013, 73/335.14

Tool Categories:

Assignees:
Buffalo Forge Co. - Buffalo, NY

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Apr. 17, 1915
Granted: Aug. 21, 1917

Patent Pictures:
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