Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB26770/37A
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Individual
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Individual
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Publication date
Application filed by IndividualfiledCriticalIndividual
Publication of GB490269ApublicationCriticalpatent/GB490269A/en
Agricultural Chemicals And Associated Chemicals
(AREA)
Abstract
Naphthalene, camphor, and like volatile solids are formed into rings or discs having a central hole and provided with weakening lines so that they may be readily broken and placed around the stems of cabbage &c. plants to protect them against cabbage root flies and other insects. The Specification as open to inspection under Sect. 91 includes also the formation of materials of the class described into parts of rings. This subject-matter does not appear in the Specification as accepted.
GB26770/37A1936-10-141937-10-04Means for protecting plants against cabbage-root flies and other insects
ExpiredGB490269A
(en)