Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Volume – flow or rate
Design Patent
2001-03-31
2002-05-21
Davis, Antoine Duval (Department: 2913)
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Volume, flow or rate
Design Patent
active
D0457452
CLAIM:
The ornamental design for a “rotameter tube O-ring retention”, as shown and described.
REFERENCES:
patent: D297716 (1988-09-01), Rosaen
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