The broken lines appearing in
The broken lines appearing in
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Ecovacs WINBOT X window cleaning robot review—The Gadgeteer artcle date 2018, https://the-gadgeteer.com/2018/11/28/ecovacs-winbot-x-window-cleaning-robot-review/, site visited Jun. 6, 2019. |
Unger® Stingray Indoor Window Cleaning Kit—Hearn Paper Company, website 2017, https://catalog.hearnpaper.com/p/UNG-SRKT6-EA/Unger-Stingray-Indoor-Window-Cleani . . . site visited Jun. 7, 2019. |