Specification of Francis Robert Hoghton : instrument for treating deafness, &c.

  • Hoghton, Francis Robert.
Date:
1874
Catalogue details

Licence: Public Domain Mark

Credit: Specification of Francis Robert Hoghton : instrument for treating deafness, &c. Source: Wellcome Collection.

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    > h * m *1 1m- ySVr &S. sv ; v:; „D. 1873, 7th jvlt. N° 2343. SPECIFICATION tfeSSS *v-^ ■ 3S; -4{' • iilWK-V**: OF FRANCIS ROBERT HOGHTON. IT. UMENT FOR TREATING DEAFNESS, &c. W&k & 'i*. - . •.' 8S?vv - .i\ 1. !*%;$ A ,.jUT * # 10. . LONDON: *V. T-fV JTED BY GEORGE E. EYRE AND WILLIAM SPOTTJSWOODE, P2HNTEB6 TO THE QUEEN’S MOST EXCELLENT MAJESTY : ' * • 14 \. • v.' „ , , - PUBLISHED AT THE GBEAT SEAL PATENT OFFICE, 25, SOUTHAMPTON BUILDINGS, HOLBOBN. % - ■ 1874 [IS? l^jf« * A ~ - f'JpT . V*r„- • a. •.. • ^.-.,4 * i r . ;>/*•*,