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.)
Expired
Application number
GB1429717A
Inventor
John Bartlett Coppleston
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by IndividualfiledCriticalIndividual
Priority to GB1429717ApriorityCriticalpatent/GB119528A/en
Publication of GB119528ApublicationCriticalpatent/GB119528A/en
119,528. Coppleston, J. B. Oct. 3, 1917. Actions, pneumatic. Valve units D are secured in pairs to the chest E by means of spring clips or pressure plates B held by nuts C on bolts A between the units.
GB1429717A1917-10-031917-10-03Improvements in Piano Player Actions.
ExpiredGB119528A
(en)