Difference between revisions of "Patent for ‘Method for producing stage sounds’. 1920, Schwabe & Co (Q39993)"
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(Created claim: Field (P19): sound, music and amplification (Q54)) | (Changed claim: Copy available online (P37): https://patents.google.com/patent/DE327234C) | ||
| Property / Copy available online | Property / Copy available online | ||
| - | + | ||
Revision as of 13:24, 28 July 2026
No description defined
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Patent for ‘Method for producing stage sounds’. 1920, Schwabe & Co | No description defined |
Statements
26 March 1917Gregorian
0 references