Overlapping fan-blade structure for a fan wheel

Details Overlapping fan-blade structure for a fan wheel Overlapping fan-blade structure for a fan wheel

2007-12-25

2007-12-25

Lichtenstein, Lisa (Department: 2916)

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Air treatment

Design Patent

active

29229705

CLAIM:
The ornamental design for overlapping fan-blade structure for a fan wheel, as shown in the accompanying drawings.

REFERENCES:
patent: D246856 (1978-01-01), O'Connor
patent: D453827 (2002-02-01), Kuo et al.
patent: D463021 (2002-09-01), Huang et al.
patent: D468009 (2002-12-01), Hoenderkamp et al.
patent: D486572 (2004-02-01), Chen et al.
patent: D486905 (2004-02-01), Wang
patent: D506823 (2005-06-01), Chiu et al.
patent: D507343 (2005-07-01), Chiu et al.
patent: D507640 (2005-07-01), Chiu et al.
patent: D507641 (2005-07-01), Chiu et al.

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