Architectural Record, Oct. 1988, p. 157, center left item. |
Domestic Engineering, May 1963, p. 112, Item #2. |
Sweets Architectural File, (1975), Section 15.16/EL, p. 1. |
An ad for a Republic IL6664 Sink, undated (admitted prior art). |
Franke advertisement showing the PR 620 Sink, undated (admitted prior art). |
An advertisement for the LCGR-3822-R Sink, undated, company name unknown (admitted prior art). |
P. 6 of an Elkay advertisement, undated, showing a "Lustertone" LGR-3722 Sink, (admitted prior art). |