A - Human Necessities – 61 – C
Patent
A - Human Necessities
61
C
83/4
A61C 17/04 (1980.01)
Patent
CA 1086999
PATENT APPLICATION of THOMAS H. McKELVEY for DENTAL SALIVA EJECTOR ABSTRACT OF THE DISCLOSURE A dental saliva ejector in which the ejector tube is equipped with a free-swivelling connector for connection to a suction conduit, the outlet end portion of the ejector tube being removably engaged in the bore of one member of the swivel connector in a resiliently compressed force fit, the swivel connector comprising two members which can be separated for cleaning.
290672
Macrae & Co.
Mckelvey Thomas H.
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