ES28733A2 -
A device called a pianograph that attached to the piano passes graphically onto the paper what is executed with as many details as necessary.
- Google Patents
A device called a pianograph that attached to the piano passes graphically onto the paper what is executed with as many details as necessary.
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Individual
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Individual
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Priority to ES28733ApriorityCriticalpatent/ES28733A2/en
Publication of ES28733A2publicationCriticalpatent/ES28733A2/en
ES28733A1901-11-041901-11-04
A device called a pianograph that attached to the piano passes graphically onto the paper what is executed with as many details as necessary.
ExpiredES28733A2
(en)
An industrial result consisting of special envelopes called "Tresor" that are made non-transparent by applying a loose paper that fits to the inside of them.