1903 Patent No. 26,644 Key changing device keyboards, Ramsperger, Stuttgart
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- ID# : 208221250
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- Location : United Kingdom
- Seller : allsortsofephemera (+21782)
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- Start : Mon 10 Jun 2024 18:10:36 (BST)
- Close : Wed 10 Jul 2024 18:10:36 (BST)
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Patent No. 26,644 A.D.1903 "Improved Key-changing-device for Keyed Instruments"
"I, Joseph Ramsperger, Manufacturer of 4 Wachterstrasse, in the City of Stuttgart, in the Kingdom of Wrutemberg, German Empire, do hereby declare the nature of this invention to be as follows: This present invention relates to a key changing or transposing device for keyed instruments, especially for pianos of all kinds, whether strung vertically, obliquely, or across. The essential feature of this invention is that there is arranged below the playing key board a supplementary key board, which is connected with the hammer mechanism..."
3 pages of text + 1 drawing which have been disbound from a larger volume.
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Listing Information
| Listing Type | Gallery Listing |
| Listing ID# | 208221250 |
| Start Time | Mon 10 Jun 2024 18:10:36 (BST) |
| Close Time | Wed 10 Jul 2024 18:10:36 (BST) |
| Starting Bid | Fixed Price (no bidding) |
| Item Condition | Used |
| Bids | 0 |
| Views | 3 |
| Dispatch Time | 3 Days |
| Quantity | 1 |
| Location | United Kingdom |
| Auto Extend | No |
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