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Class Information
Number: 84/35
Name: Music > Instruments > Automatic > Stringed > Pianos > Pneumatic type > Expression mechanism > Parts of piano moved > Rest rail shifted
Description: The hammer rest-rail is shifted, usually in sections and without depressing the pedal.

Sub-classes under this class:

Class Number Class Name Patents
84/38 Graduated shift 0
84/36 Normally in short stroke position 0
84/37 Position controlled from reservoir 1

Patents under this class:

Patent Number Title Of Patent Date Issued
7193147 String-striking device for piano Mar. 20, 2007
7145062 String-striking device of piano Dec. 5, 2006

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