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US Patent: 3,941,040
Fume hood
Patentee:
Arthur W. Carlson - Muskegon, MI

USPTO Classifications:
108/150, 454/56, 55/DIG.18

Tool Categories:

Assignees:
E. H. Sheldon & Co. - Muskegon, MI

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Feb. 12, 1975
Granted: Mar. 02, 1976

Patent Pictures:
USPTO pdf tiff
Google Patents
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"Vintage Machinery" entry for E. H. Sheldon & Co.

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