United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 949
to yieldlongitudinally of the cylinder to compensatefor expansion and contraction thereof, andsaid means being adapted to hold said headsinto gripping engagement with their respec- 85tive ends of the cylinder independently ofsuch supporting mandrel. Signed at Chicago this 9th day of Febru-ary 1907.… … , ! u mi FipT.l. WlnrjsJ £av& n/e: Jsl t a f\- Y^< ■ffUJVJL. ru3 ff-rAxxst^UJS)^ fiz <£ZZS^=y<fv No. 854,120. PATENTED MAY 21, 1907. J. S. STONE.DEVICE FOR AMPLIFYING ELECTRICAL CURRENTS. APPLICATION FILED MAY 23, 1906. 2 8HEET8-8HEET 2 Wi-rpJ ^2S
Phonograph · Patents
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