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Door Knob icon - also known as virus, door knob, door, door lock, healthcare and medical, germ, and virus transmission. Created in a clean flat gradient style, perfect for web, apps, and UI projects. Available in SVG and PNG, with multiple style variants.
<svg
xmlns="http://www.w3.org/2000/svg"
width="512"
height="512"
viewBox="0 0 64 64"
>
<linearGradient
id="c"
x1="39.5"
x2="39.5"
y1="50"
y2="0"
gradientUnits="userSpaceOnUse"
>
<stop offset="0" stop-color="#3d9ae2" />
<stop offset="1" stop-color="#78b9eb" />
</linearGradient>
<linearGradient id="a">
<stop offset="0" stop-color="#c2dff6" />
<stop offset="1" stop-color="#d1e7f8" />
</linearGradient>
<linearGradient
id="d"
x1="24"
x2="24"
y1="64"
y2="30"
gradientUnits="userSpaceOnUse"
href="#a"
/>
<linearGradient id="b">
<stop offset="0" stop-color="#007579" />
<stop offset="1" stop-color="#00969b" />
</linearGradient>
<linearGradient
id="e"
x1="20"
x2="20"
y1="41"
y2="35"
gradientUnits="userSpaceOnUse"
href="#b"
/>
<linearGradient
id="f"
x1="32.5"
x2="32.5"
y1="54"
y2="45"
gradientUnits="userSpaceOnUse"
href="#b"
/>
<linearGradient
id="g"
x1="27"
x2="27"
y1="60"
y2="54"
gradientUnits="userSpaceOnUse"
href="#b"
/>
<linearGradient
id="h"
x1="12"
x2="23"
y1="50.5"
y2="50.5"
gradientUnits="userSpaceOnUse"
href="#b"
/>
<linearGradient
id="i"
x1="20"
x2="31"
y1="42.5"
y2="42.5"
gradientUnits="userSpaceOnUse"
href="#b"
/>
<linearGradient
id="j"
x1="44.635"
x2="44.635"
y1="38"
y2="16"
gradientUnits="userSpaceOnUse"
href="#b"
/>
<linearGradient
id="k"
x1="35"
x2="35"
y1="27"
y2="19"
gradientUnits="userSpaceOnUse"
href="#a"
/>
<path
fill="url(#c)"
d="M53 0H35c-2.206 0-4 1.794-4 4v15h-5c-2.206 0-4 1.794-4 4s1.794 4 4 4h5v19c0 2.206 1.794 4 4 4h18c2.206 0 4-1.794 4-4V4c0-2.206-1.794-4-4-4z"
/>
<circle cx="24" cy="47" r="17" fill="url(#d)" />
<circle cx="20" cy="38" r="3" fill="url(#e)" />
<path
fill="url(#f)"
d="M34 45c-1.654 0-3 1.346-3 3-1.654 0-3 1.346-3 3s1.346 3 3 3c3.309 0 6-2.691 6-6 0-1.654-1.346-3-3-3z"
/>
<circle cx="27" cy="57" r="3" fill="url(#g)" />
<path
fill="url(#h)"
d="M20 50c-1.103 0-2-.897-2-2 0-1.654-1.346-3-3-3s-3 1.346-3 3c0 4.411 3.589 8 8 8 1.654 0 3-1.346 3-3s-1.346-3-3-3z"
/>
<path
fill="url(#i)"
d="M28 37c-1.654 0-3 1.346-3 3 0 1.103-.898 2-2 2-1.654 0-3 1.346-3 3s1.346 3 3 3c4.411 0 8-3.589 8-8 0-1.654-1.346-3-3-3z"
/>
<path
fill="url(#j)"
d="M44 16c-2.283 0-4.418 1.142-5.721 3H44c2.206 0 4 1.794 4 4s-1.794 4-4 4h-5.73A7.036 7.036 0 0 0 40 28.738V35c0 1.654 1.346 3 3 3h2c1.654 0 3-1.346 3-3v-6.262A7.023 7.023 0 0 0 51 23c0-3.86-3.141-7-7-7z"
/>
<path
fill="url(#k)"
d="M44 19H26c-2.206 0-4 1.794-4 4s1.794 4 4 4h18c2.206 0 4-1.794 4-4s-1.794-4-4-4z"
/>
</svg>
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