"visible not only" is correct and can be used in written English.
It is generally used to introduce a contrast or comparison between two things. Here is an example: "The impact of climate change is visible not only in the melting polar ice caps, but also in the increasing frequency of extreme weather events."
The corrosive effects of this trend are visible not only on Wall Street.
The recovery is visible not only on the balance sheet but in improved operations.
Its rapid expansion is visible not only in research environment but also in construction habits because of the several standards released in different countries.
The idea is, by making these women more visible, not only are their profiles raised, but the profiles of all women in these fields.
There, they are visible not only to federal agents but to state and local police around the country through the Department of Homeland Security's controversial fusion centers.
These productive effects are visible not only in the program itself but also in the wider context of state-society relations shaping debates on South South cooperation in Mozambique, Brazil, and beyond.
Many modern camouflage textiles address visibility not only to visible light but also near infrared, for concealment from night vision devices.
Some business owners, like Steve Walker, chief executive of Walker Information, find that action -- coddling your best customers, nurturing valuable employees and staying visible -- not only relieves anxiety but can also lessen financial adversity.
He is the only politician who enjoys the visible support not only of the American armed forces but also a private militia, dressed in surplus American-style fatigues.
The long decline is visible today not only in the absence of "push boys" weaving racks of dresses across the clogged Midtown canyons but also in hard statistics.
Rami Girgis, Abercrombie & Kent's product manager for Egypt and North Africa, who just returned from Cairo, said, "The security forces are visible everywhere, not only tourist police, but the army".
