USD176657S - Control instrument - Google Patents

Control instrument Download PDF

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Publication number
USD176657S
USD176657S US D176657 S USD176657 S US D176657S
Authority
US
United States
Prior art keywords
control instrument
minneapolis
united states
device shown
dreyfuss
Prior art date
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Other languages
English (en)
Inventor
Henry Dreyfuss
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Publication date

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