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… by this author (Reference 29). The principle of pneumatic lifejackets has been around for longer than people realize. … as BC 870 to cross a moat; but subsequently only crude lifejackets were available to the sailor until the mid 19th … and wrecking did not encourage the development of lifejackets. However, the advent of iron ships around 1850 …
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… Previous Page List of References and Contacts Note: Addresses and telephone numbers may change from time to time. To ensure … of these guidelines, please contact Marine Safety, Prairie and Northern Region (1). Should you have difficulty with any …
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