Question 1

Is “Differential Resonator” in the public domain?

Accepted Answer

Yes. “Differential Resonator” is public domain and released under CC0, so it is free to download and reuse for any purpose, including commercially, with no permission needed.

Question 2

Where is “Differential Resonator” from?

Accepted Answer

It is catalogued from the open collection of Smithsonian Open Access and is free to reuse under CC0.

Question 3

Can I use “Differential Resonator” commercially for free?

Accepted Answer

Yes. As a CC0 public-domain work it can be used commercially, modified and redistributed with no fee and no attribution required.

Title	Differential Resonator
Medium	overall: 2 15/16 in x 18 5/8 in x 4 in; 7.46125 cm x 47.3075 cm x 10.16 cm
Classification	resonator
Origin	Canada: Ontarian, Toronto
Holding institution	Smithsonian Open Access
Credit line	United States Military Academy
Rights	Public domain (CC0)

Differential Resonator

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