Sight glass applied in refrigeration system

Details Sight glass applied in refrigeration system Sight glass applied in refrigeration system

2009-01-21

2009-12-22

Davis, Antoine D (Department: 2915)

Measuring, testing, or signalling instruments

Measuring, regulating or indicating instrument, or casing

Volume, flow or rate

CD10S102000

Design Patent

active

D0606437

CLAIM:
The ornamental design for a sight glass applied in refrigeration system, substantially as shown and described.

REFERENCES:
patent: 4064826 (1977-12-01), Pauli
patent: 4888990 (1989-12-01), Bryan et al.
patent: 5383338 (1995-01-01), Bowsky et al.
patent: D412454 (1999-08-01), Berkelhammer
patent: 6116274 (2000-09-01), Ehrlich
patent: D495265 (2004-08-01), Kim
patent: D519867 (2006-05-01), Kim
patent: 7540187 (2009-06-01), Dillon
patent: 0866290 (2003-05-01), None

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