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"HUGH SPENCE LEMAN"
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"HUGH SPENCE LEMAN"
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Telephone subscribers' instruments
by
LEMAN HUGH SPENCE
Year of Publication
23.08.1960
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Telephon-Teilnehmerapparat
by
SPENCE LEMAN
,
HUGH
Year of Publication
31.12.1959
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Telephone signalling systems
by
LEMAN HUGH SPENCE
Year of Publication
08.12.1959
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Improvements in or relating to telephone signalling systems
by
LEMAN HUGH SPENCE
Year of Publication
16.04.1958
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Improvements in or relating to telephone subscribers' instruments
by
LEMAN HUGH SPENCE
Year of Publication
10.07.1957
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TONE SIGNALLING DEVICE USING PIEZO-ELECTRIC REED OSCILLATORS
by
HUGH SPENCE LEMAN
,
WILLIAM DONALD CRAGG
Year of Publication
08.12.1970
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TELEPHONE SETS
by
HUGH SPENCE LEMAN
,
GEORGE JOHN PRESTON BARNES
Year of Publication
03.06.1969
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Schaltungsanordnung fuer Lautfernsprecher
by
SPENCE LEMAN
,
HUGH
,
PRESTON BARNES,GEORGE JOHN
Year of Publication
27.02.1969
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Improvements in or relating to signal transmission equipment
by
LEMAN HUGH SPENCE
,
BARBER DONALD ROBERT
Year of Publication
03.08.1966
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Improvements in or relating to telephone sets
by
LEMAN HUGH SPENCE
,
BARNES GEORGE JOHN PRESTON
Year of Publication
11.05.1966
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Schaltungsanordnung zum Rufempfang an Teilnehmerstationen in Fernsprechanlagen
by
LEMAN HUGH SPENCE
,
BARNES GEORGE JOHN PRESTON
Year of Publication
09.09.1965
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Improvements in or relating to control of the transmission of electrical signals through networks
by
LEMAN HUGH SPENCE
,
BARNES GEORGE JOHN PRESTON
Year of Publication
21.07.1965
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Apparatus for determining direction of signals in lines
by
LEMAN HUGH SPENCE
,
BARNES GEORGE JOHN PRESTON
Year of Publication
16.09.1964
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Telephone sub-sets
by
LEMAN HUGH SPENCE
,
BARNES GEORGE JOHN PRESTON
Year of Publication
12.04.1961
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Improvements in or relating to telephone ringing equipment
by
LEMAN HUGH SPENCE
,
BARNES GEORGE JOHN PRESTON
Year of Publication
27.05.1959
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Push Button Signalling
by
HUGH SPENCE LEMAN
,
THOMAS DOMINIC HAYES
,
WILLIAM DONALD CRAGG
Year of Publication
08.07.1970
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MAGNETIC TAPE RECORD EDITING APPARATUS
by
HUGH SPENCE LEMAN
,
JOHN UVEDALE GREEN
,
GEORGE JOHN PRESTON BARNES
Year of Publication
22.04.1969
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Telephonteilnehmerstation mit Rückhörverhinderung
by
SPENCE LEMAN
,
HUGH
Year of Publication
15.05.1961
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Perfectionnements aux appareils téléphoniques
by
LEMAN HUGH SPENCE
Year of Publication
30.09.1959
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Perfectionnements aux appareils téléphoniques
by
LEMAN HUGH SPENCE
Year of Publication
30.01.1959
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