Submarine Appliances And Their Uses
Deep Sea Diving, &c., &c.
Forfatter: R. H. Davis
År: 1911
Forlag: Siebe, Gorman & Co., Ltd.
Sted: London
Sider: 183
UDK: 626.02
A Diving Manual
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SUBMARINE SIGNALLING APPARATUS.
Copyright.
Direction-Indicator and
Receiving Telephone.
Copyright.
Submarine Signal Buoy Apparatus
for attaching to Bell Buoys.
Copyright.
Copyright.
Lightship Bell attached to case (open and closed) con-
taining Striking Mechanism operated by Compressed Air.
Copyright.
Electrically operated Bell
with Cable Connections.
I 2Ö