Anti-vacuum funnel

Environmental heating and cooling; fluid handling and sanitary e – Fluid handling or treatment equipment

Patent

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2301

Patent

active

D04262832

REFERENCES:
patent: D118723 (1940-01-01), Martin
patent: 120637 (1871-11-01), French
patent: D375878 (1996-11-01), Morris
patent: 4901776 (1990-02-01), Attinello

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