Machines not elsewhere specified – Pump or compressor – Aquarium type
Patent
1991-05-28
1993-09-14
Word, A. Hugo
Machines not elsewhere specified
Pump or compressor
Aquarium type
Patent
active
D03393569
REFERENCES:
patent: D224356 (1972-07-01), Kondo
patent: D227507 (1973-06-01), Kondo
patent: D247436 (1978-03-01), Willinger et al.
patent: D253652 (1979-12-01), Maryanski
patent: D263593 (1992-03-01), Goldman et al.
Seifert R.
Word A. Hugo
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