In the drawings, the broken lines depict portions of the filter cartridge that form no part of the claimed design.
In the drawings, the broken lines depict portions of the filter cartridge that form no part of the claimed design.
Number | Name | Date | Kind |
---|---|---|---|
34643 | Nason | Mar 1862 | A |
118432 | Caulfield | Aug 1871 | A |
216324 | Hart | Jun 1879 | A |
D17614 | Parmelee | Aug 1887 | S |
D29740 | Higgins | Nov 1898 | S |
647023 | Paul | Apr 1900 | A |
D35186 | Davidson | Oct 1901 | S |
D36216 | Wilder | Feb 1903 | S |
761482 | Hess | May 1904 | A |
1355218 | Ellis | Oct 1920 | A |
1368318 | Bassler | Feb 1921 | A |
1371725 | Bernard | Mar 1921 | A |
1747159 | Callahan | Feb 1930 | A |
D91911 | Stevens | Apr 1934 | S |
D95533 | Moray | May 1935 | S |
D116209 | Von-Kohorn Zu Kornegg | Aug 1939 | S |
D536080 | Folkers | Jan 2007 | S |
Entry |
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Thermex.com, Finned tube heat exchanger, Dec. 25, 2017, online product page, retrieved Apr. 10, 2020 from <URL:https://web.archive.org/web/20171225232642/http://www.thermex.co.uk/product/finned-tube-heat-exchangers> (Year: 2017). |