Public Domain Mark
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Credit
Specification of Michael Jackson : shield for the gums. Public Domain Mark. Source: Wellcome Collection.
Contains: 8 images
Public Domain Mark
You can use this work for any purpose without restriction under copyright law. Read more about this licence.
Credit
Specification of Michael Jackson : shield for the gums. Public Domain Mark. Source: Wellcome Collection.
Patent for "an improved shield for the gums, to protect them from injury when cleaning the teeth".
Location | Status | Access | |
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Closed stores Pat. vol. 29 |
Location | Access | ||
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Closed stores Pat. vol. 29:19 |