Machines not elsewhere specified – Pump or compressor
Design Patent
2002-06-12
2004-11-30
Seifert, Ralf (Department: 2914)
Machines not elsewhere specified
Pump or compressor
Design Patent
active
D0499113
CLAIM:
The ornamental design for an air directional control valve, as shown and described.
REFERENCES:
patent: D224355 (1972-07-01), Kondo
patent: D227507 (1973-06-01), Kondo
patent: D354754 (1995-01-01), Broughton
patent: D395318 (1998-06-01), Wang
patent: D448778 (2001-10-01), Iwata
patent: D454885 (2002-03-01), Murayama et al.
Murayama Yasuhiro
Takao Toshihiro
Seifert Ralf
Techno Takatsuki Co. Ltd
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