Portable water filter

Details Portable water filter Portable water filter

1977-03-24

1978-09-05

Largen, James R.

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Element or attachment, not elsewhere specified

D2301

Patent

active

D02492750

REFERENCES:
patent: D89596 (1933-04-01), Soreng
patent: D168249 (1952-11-01), Atkinson
patent: D173603 (1954-12-01), Atkinson
patent: D211724 (1968-07-01), Schneider, Sr.
patent: D238172 (1975-12-01), Blackstone
patent: 1052440 (1913-02-01), Hagg
patent: 3339743 (1967-09-01), Bealle

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