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HITCHCOCK LAMP Co
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HITCHCOCK LAMP Co
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Application filed by HITCHCOCK LAMP CofiledCriticalHITCHCOCK LAMP Co
Application grantedgrantedCritical
Publication of CA51451ApublicationCriticalpatent/CA51451A/fr
Improvements in Apparatus for Automatically Discharging Disinfectant Liquids into the Water in Cisterns from which Water Closets, Urinals, and the like are Flushed.