BR9303136A -
Improvement introduced in protective mask for welder
- Google Patents
Improvement introduced in protective mask for welder
Info
Publication number
BR9303136A
BR9303136ABR9303136ABR9303136ABR9303136ABR 9303136 ABR9303136 ABR 9303136ABR 9303136 ABR9303136 ABR 9303136ABR 9303136 ABR9303136 ABR 9303136ABR 9303136 ABR9303136 ABR 9303136A
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Application filed by Osvaldo GuerinofiledCriticalOsvaldo Guerino
Priority to BR9303136ApriorityCriticalpatent/BR9303136A/en
Publication of BR9303136ApublicationCriticalpatent/BR9303136A/en