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Scientific American, Vol. 58, No. 21 (1888) (1888)

leaf 4

An illustration from Scientific American, Vol. 58, No. 21 (1888), 1888, leaf 4
is held in a bearing on with a vertical side and inclined sides, and suspended slotted ends of the arms, thereby moving each arm the main frame, but its outer end rotates in a bearing from the hinge post through this frame. The outer along as each ball passes through, and moving alter- on a pivoted… … vice for use in connection with pianos and organs, for It is illus- trated herewith, and has been patented by Mr. Charles Z free end, the outer end of this pivoted and weighted S. Mason, of El Modena, Los Angeles County, Cal. A ‘JACKSON’S CHECK-ROW ATTACHMENT FOR PLANTERS, arm being also connected,…

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