1. Legal protection for the "Gondola for an airship" was secured in four countries.United States Patent No. Des. 305,418 20 December 1987
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Commonwealth of Australia Registration of Design No. 100184 4 May 1987
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United Kingdom Registration of Design No. 1048946 5 September 1988
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Canadian Industrial Design Registration No. 65368 13 February 1990
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2. Copyright protection is claimed for the following designs. (i) Ballonet Injector/Ejector
(ii) Tripod scissor-lift
(iii) Thruster
(iv) Spherical ballonet
(v) Tear Stopper
(vi) Capture/mooring mast - groundborne
(vii) Capture/mooring/launching mast - airborne
(viii) Ground manoeuvring mule
(ix) Wind reporting grid