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Individual
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Application filed by IndividualfiledCriticalIndividual
Priority to FR7406185ApriorityCriticalpatent/FR2261718A1/fr
Publication of FR2261718A1publicationCriticalpatent/FR2261718A1/fr
Application grantedgrantedCritical
Publication of FR2261718B1publicationCriticalpatent/FR2261718B1/fr
A42B3/00—Helmets; Helmet covers ; Other protective head coverings
A42B3/04—Parts, details or accessories of helmets
A42B3/30—Mounting radio sets or communication systems
FR7406185A1974-02-221974-02-22Motor cycle helmet to protect the whole head - has a phonic communication path between interior and exterior
GrantedFR2261718A1
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