Thanks to Kathy Grason Ramon for providing the following:
-
Time line data
-
Historical facts
-
Vintage catalogs
-
Price lists
-
Employee list
Behavioral instruments
Published 1960
Speech audiometer
Published 1969
Environmental
programmable relay
programable solid state
Computer controlled
Bekesy sweep freq. audiometer
1701 Manual
1701 automatic
Evoked potential sys
1702 audiometer
1703 industrial audiometer
Micro-processor controlled
1704 audiometer
1705 audiometer
Domestic prices
1707 portable
Noise primer
1715 audiometer
1722 middle-ear screener
Guide to tympanometry
1723 middle-ear analyzer
1710 audiometer
1716 audiometer
GSI 50 ABR
1733 middle-ear analyzer
Tympstar middle-ear analyzer
GSI 70
GSI 61 audiometer
GSI 38 autotymp
GSI 37 autotymp
GSI 17 portable
GSI 65 industrial audiometer
GSI 60 OAE