 |
Patents Acquired from 1950 to 1974
| Application |
Inventor(s) |
Title; Invention Claimed;
Concordance |
Letters Patent |
| File Date |
Number |
|
|
Grant Date |
Number |
Aug 26, 1953
|
26,595
|
Walter Dorwin Teague
Charles A. Jerabek |
"Grand Piano"; design for grand piano
|
Apr 12, 1955
|
Des. 174,477
|
| Oct 17, 1956 |
--- |
Walter Günther |
"Grand Piano Action With Means for Adjusting the Touch Weight Resistance
of the Keys"; corresponds to 2,911,874 |
Aug 27, 1959 |
Ger. 1,064,325 |
| Oct 15, 1957 |
690,256 |
Walter Günther |
"Means for Adjusting the Touch of Keys in Pianos and Like Musical Instruments";
corresponds to Ger. 1,064,325 |
Nov 10, 1959 |
2,911,874 |
| Nov 20, 1959 |
854,375 |
Frank H. Walsh |
"Wrestplanks"; hexagrip wrestplank (pin block) |
May 28, 1963 |
3,091,149 |
| Mar 05, 1962 |
177,399 |
Theodore D. Steinway |
"Piano Action Bushing Assembly"; fluorocarbon resin ("permafree")
bushing assembly for piano action |
Mar 15, 1966 |
3,240,095 |
| |
Caring for Your Steinway
Find Out How Old Your Steinway Is
Schematic - Steinway Model M Grand Piano
The Soundboard
The Steinway Finish
Steinway Patents
The Sizes of "Modern" Grand Pianos
 Contact Us
|
|
