USD97827S - Design fob a photoelectric - Google Patents

Design fob a photoelectric Download PDF

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Publication number
USD97827S
USD97827S US D97827 S USD97827 S US D97827S
Authority
US
Grant status
Grant
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Prior art keywords
fig
weston
photoelectric
design
exposure
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Other languages
English (en)
Inventor
Edward F. Weston
Original Assignee
Weston Electrical Instrument Corporation
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