Gutter protector

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

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2301

Patent

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D04160797

REFERENCES:
patent: D168008 (1952-10-01), Woodruff
patent: D181623 (1957-12-01), Brand
patent: D223829 (1972-06-01), Cook
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patent: D310259 (1990-08-01), Hitchins
patent: D372545 (1996-08-01), Schultz
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patent: 2672832 (1954-03-01), Goetz
patent: 4404775 (1983-09-01), Demartini
patent: 4447994 (1984-05-01), Garneau
patent: 4455791 (1984-06-01), Elko et al.
patent: 4604837 (1986-08-01), Beam
patent: 4757649 (1988-07-01), Vahldieck
patent: 4796390 (1989-01-01), Demartini
patent: 4937986 (1990-07-01), Way, Sr. et al.
patent: 5181350 (1993-01-01), Meckstroth
patent: 5305562 (1994-04-01), Sapia
patent: 5375379 (1994-12-01), Meckstroth
patent: 5406755 (1995-04-01), Serano
patent: 5457916 (1995-10-01), Tenute
patent: 5537785 (1996-07-01), Zaccagni
Advertising leaflet for Gutter-Helmet, dated Feb. 1991.

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