Machines not elsewhere specified – Pump or compressor
Design Patent
2000-08-18
2001-05-22
Seifert, Ralf (Department: 2914)
Machines not elsewhere specified
Pump or compressor
Design Patent
active
D0442607
CLAIM:
The ornamental design for the air operated piston pump, as shown and described.
REFERENCES:
patent: D. 303670 (1989-09-01), Adolfo
patent: D. 304197 (1989-10-01), Adolfo
patent: D. 308209 (1990-05-01), Laqua et al.
patent: D. 327891 (1992-07-01), Morgan
patent: D. 333472 (1993-02-01), Aizawa
Farrow Douglas B.
Graco Minnesota Inc.
Seifert Ralf
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