Home| FAQ Search:Advanced|Person|Company| Type|Class Login
Quick search:
Patent number:
Patent Date:
first    back  next  last
RX Patent: RX-8
Piano Action
Improvement in Mode of Fitting the Hammer-Heads of Piano-Fortes
Patentee:
John Mackay (exact or similar names) - Boston, Middlesex County, MA

USPTO Classifications:
84/254

Tool Categories:
trade specific : music instrument maker

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Thomas P. Jones
Linton Thorn

Patent Dates:
Granted: Apr. 18, 1839

Reissue Information:
Reissue of 5,189X (Aug. 14, 1828)

Patent Pictures:
Report data errors or omissions to steward Joel Havens
X-Patents
USPTO Images
USPTO Info
Description:
RX patents are reissues of X patents that were destroyed in the Dec. 1836 patent office fire.

Copyright © 2002-2024 - DATAMP